53. (a) Find the value of R. Class 10 Science Electricity Short Answer Type Questions[ll] [3 Marks] – Year 2009, 58. In the given circuit, connect a nichrome wire of length ‘L’ between points X and Y and note the ammeter reading. So, amount of charge flowing the filament of electric lamp Convert it into joules. (b) An electrical fuse is rated at 2 A. Class 10 Science Electricity Short Answer Type Questions[ll] [3 Marks] – Year 2011. Like every year, the CBSE Results will be published online on the official website of the board i.e. Tyndal effect: When a beam of light is passed through a colloidal solution, placed in a dark room, the path of beam becomes illuminated (or visible), when observed through a microscope placed perpendicular to the path of light. CBSE Test Generator. Answer. A torch bulb is rated 2.5 V and 750 mA. Answer. Apparatus Required : A cell, an ammeter, nichrome wires of different length but same area of cross-section (thickness), nichrome wires of same length but different thickness, copper and iron wire of the same length and same thickness as that of any nichrome wire. Hindi is a scoring subject and students can easily boost up their overall Class 10 score by giving close attention to Hindi. (ii) Rheostat/Variable resistor (b) State the relation between work, charge and potential difference for an electric circuit. In series. (i) The glow of other two bulbs remains the same. List any three reasons. You will receive a link and will create a new password via email. When CBSE Date Sheet 2019-2020 for Class 10 and Class . Resistors are joined in the circuit in two different methods, i.e., in series and in parallel. (a) Conventional direction of electric current is opposite to the direction of flow of electrons in a wire. The value of resistance in the other four observations will be I (using R = V/I) 10Ω, 11 Ω, 10 Ω and 10.67 Ω. Answer. Direction of flow of electrons gives the direction of electronic current by convention, the direction of flow of positive charge is taken as the direction of conventional current. Electrostatic Potential. Answer. Taru Jain, one of the 13 toppers in CBSE Class 10 exams, revealed her secret success mantra for making it to the top position. 57. Mention any two major uses of Internet. CBSE > Class 10 > Science 4 answers; What is the difference between resistor and rheostat? Plug the key. 1 kWh = 1000 Wh = 1000 J/S x 3600 sec (c) What is the commercial unit of electric energy? Otherwise, they might miss out on certain chapters and topics. By going thoroughly through the CBSE Syllabus 2020-21, you will be able to cover the particular unit along with unit-wise weightage marks. Justify your answer. remain same, the current flowing through the conductor is directly proportional to the potential difference applied across the ends of the conductor, i.e., (d) For unidentical bulbs in parallel- different current, same potential difference. Why? The wire used in the element of electric heater has a high resistivity and have a high melting point, i.e. Calculate the value of current flowing through the 20 Ω resistor and the power consumed by the 30 Ωresistor. (a) lesser than that of A. Tarun Jain belongs to St. Angela Sophia Sr Secondary School in Jaipur. The unseen passages in CBSE Class 10 English Sample Paper 2020-21 will have only MCQs. Please enter your email address. Answer. Maths is an important subject of Class 10. Rheostat: A component used to regulate the electric current flowing through a circuit without changing the voltage is called Rheostat. (ii) maximum current The purpose of a rheostat is: 1; Poll Results. CBSE Class 10 Science Lab Manual – Ohm’s Law Aim To study the dependence of potential difference (V) across a resistor on the current (I) passing through it and determine its resistance (R). Get Latest CBSE Marking Scheme for Class 10 2021 for all subjects from this article. What if a student changes his/her mind and want to study Maths after Class 10? Power consumed by 30 Ω = I2R = (0.2)2 x 30=1.2W. Voltmeter and ammeter reading increases as the number > of cells increase in series. Class 10 Science Electricity Very Short Answer Type Question [1 Mark] – Year 2014, 9. 33.A 9Ω resistance is cut into three equal parts and connected in parallel. However, due to the pandemic, the remaining papers in the examination was postponed. Answer. Answer. 31. 3. Using Ohm’s law, current through each resistor is, Class 10 Science Electricity Very Short Answer Type Questions [1 Mark] – Year 2009. Incident light: Light which falls on the surface is called incident light. Check the new CBSE Syllabus of Class 10 Social Science subject for the academic session 2020-2021. (ii) the total current. This year due to Covid-19 crisis, the board has come up with an alternative assessment pattern. Students of Class 10 should have started their preparation as CBSE board exams are almost there. This is really very important for students to get a feel of how the actual board exam is, what will be the exact pattern of question papers. Discuss in which geometrical shape the resistance will be highest. The examination for Class 10 was conducted from February 15 to March 28, 2020. Before knowing what is a role code, it is important to have a clear idea about CBSE. 11. Knowing the CBSE Class 10th 2021 Mathematics Syllabus is a prerequisite for students appearing for Board Examination. CBSE Class 10, 12 exams will be held post February. In series: Rest of the bulbs will not glow. 18.Find the current flowing through the following electric circuit. Explain the above statement. Answer. Express it in terms of potential difference V and resistance R. “The classes 10 and 12 board exams will not be held in January or February. Connect voltmeter in parallel with these resistors between the terminals X and Y. Answer. Types of substances depending upon their ability to conduct current . All electrical appliances work at a constant voltage. Students who wish to appear for basic maths can’t pursue maths in Class 11 or Class 12. No!! = 3600000 J = 3.6 x106J. Justify your answer in both the cases. Length becomes one-fourth of the original length and area of cross-section becomes four times that of original. CLASS X (2019-20) SCIENCE (CODE 086) SAMPLE PAPER-4 Time : 3 Hours Maximum Marks : 80 General Instructions : (i) The question paper comprises of three sections-A, B and C. Attempt all the sections. Procedure : 7. CBSE Class 10 Syllabus 2020-21 After 30% Reduction. Answer. Necessary condition for validity of Ohm’s law is that physical condition such as NCERT Solutions for Class 6, 7, 8, 9, 10, 11 and 12. Class 10 Science Electricity Short Answer Type Questions[ll] [3 Marks] – Year 2015. Students first check out your Class 10 CBSE Exam Syllabus 2020 spend more time on the chapters which carry high weightage. (i) When this experiment is repeated by inserting another nichrome wire of the same thickness but twice the length (2L), what changes are observed in the ammeter reading? where R is constant of proportionality and is called resistance of the wire. (ii)Following graph was plotted between V and I values : Class 10 CBSE Last 10-year Question Papers come with a set of tips and tricks to help ace your exams and score with ease. The result of both class 10 and class 12 will be hosted on the official websites – cbse.nic.in, cbseresults.nic.in and results.nic.in. Procedure: Conclusion: Same reading of all the ammeter in each observation concluded that same current flows through every part of the circuit. Answer. that should be used for the electric iron. Greater than slope of V-I graph, greater will be the resistance of given metallic wire. A fuse wire is inserted in which wire? CBSE 10th Result 2020 Date and Time: The CBSE will be releasing the class 10th board examination results today (July 15). (b) each bulb draws required current from the mains. Circuit diagram: The schematic representation which shows the arrangement of different devices or components by using their electrical symbols is called a circuit diagram. CBSE 10th Compartment Result 2020 Declared: The Central Board of Secondary Education has released the CBSE Board Class 10 compartmental results 2020 for all the students who appeared in the exam. July 15, 2020, 19:02 IST explore: Education and Career If R1 = R2 =R3 = R4= R5 = 3 Ω, find the equivalent resistance(Rs) of the circuit. (c) For unidentical bulbs in series- same current, different potential difference. Also plot a graph between V and I. Types of electricity. 29. = 0.2 A It has variable resistance. Answer. No!! This approach will enable you to plan your studies as per the sequence of the topics in your syllabus. It measures the current ‘I’. (c) between A and B. The students must know all the experiments along with theorems, laws, and numerical to understand all the concepts of 12th standard physics in a detailed way. Power. Answer. Calculate (i) its power, (ii) its resistance and (iii) the energy consumed, if this bulb is lighted for four hours. This means the resistors must be connected in parallel. Answer. 32. What would be the values of V /I ratios when the potential difference is 0.8 V, 1.2 V and 1.6 V respectively? BASIC BUILDING CONCEPTS. Ohm’s law : When the physical conditions such as temperature etc. (a) less than that of A. Metalloids separates metals and non-metals. Adjust the sliding contact of the rheostat initially for a small current. CBSE Class 10 Science Chapter 12 - Electricity . (ii) Total current drawn from the battery, and (a) When 1 joule of work is done in carrying 1 coulomb of charge, from infinity to a point in the electric field, then potential at that point is called 1 volt. 5. Answer. State the change observed in the temperatures of the two wires. 17.The figure below shows three cylindrical copper conductors along with their face areas and lengths. Ammeter shows the total current drawn by the parallel combination of these resistors while voltmeter shows the voltage applied across the combination. So, to get maximum current, the equivalent resistance has to be less. Two resistors with resistances 5Ω and 10 Ω are to be connected to a battery of emf 6 V so as to obtain: Remove marked 3 nichrome wire from the gap XY. All the elements of group 2 have valency 2. Students who wish to appear for basic maths can’t pursue maths in Class 11 or Class 12. (d) different wattage are connected in parallel. (b) same wattage are connected in parallel. It is because resistance of wire is directly proportional to the length of wire. It is provided so that the students can understand the experiments in a better way. In the given graph, wire A has greater slope then B. (vi)(a) In series, resistances are added. (iii) Internal choice is given in each sections. 56. Heat produced, H = VIt. (ii)When one bulb in each circuit get fused, Free PDF Download - Best collection of CBSE topper Notes, Important Questions, Sample papers and NCERT Solutions for CBSE Class 10 Physics Electricity. Same value of V/I is obtained in each case. Answer. Calculate the mean value of resistance of the resistor based on the remaining four sets of readings. In an experiment to study the relation between the potential difference across a resistor and the current through it, a student recorded the following observations: Calculate the amount of charge flowing through the An arrangement for maintaining the continuous flow of electric current by the electrical energy source through the various electrical components connected with each other by conducting wires is termed as electric circuit. (b) “Potential difference between points A and B in an electric field is 1 V”. Justify your answer. Answer. Any indian language/Hindi - 100 ( 80 Board exam + 20 Internal marks) 3. Two resistors of 10 Ω and 15 Ω are connected in series to a battery of 6 V. How can the values of current passing through them be compared? Out of the two wires X and Y shown below, which one has greater resistance? Ltd.. Added an answer on December 28, 2020 at 8:57 am. circuit. Answer. Second observation shows that thicker wires have lesser resistance. (Charge on electron 1.6 X 10-19 coulomb). CBSE 2004 Answer: Due to its extensible use and sharing of data, Internet becomes so popular. less the power of electrical device, higher is its electrical resistance. 42.Name the physical quantity which is (i) same (ii) different in all the bulbs How is this law verified experimentally? (a) Potential difference across 6Ω = 12 V (iv)(a) Resistance wire – A (b) Connecting wire – D Contents1 NCERT Class 10 Science Lab Manual – Resistors in Series1.1 Practical Of Physics Class 10 Viva Voce1.2 Practical Based Questions1.3 Lab Manual Class 10 Science Questions1.4 Multiple Choice Questions (MCQs)1.5 Scoring Key With Explanation NCERT Class 10 Science Lab Manual – Resistors in Series Introduction Resistors can be connected in series or in parallel. Write relation between heat energy produced in a conductor when a potential difference V is applied across its terminals and a current I flows through for ‘t’ 14. Why should a fuse with defined rating for an electric circuit not be replaced by one with a larger rating? 39.Consider the following circuit diagram. CBSE Class 10 Science Lab Manual – Resistors in Series Aim To determine the equivalent resistance of two resistors, when connected in series combination. Why is Internet is so popular? Calculate the power of the bulb the potential difference at its ends and the energy in kWh consumed burning it for 5h. Give justification for your answer. The results of CBSE 10th compartment exam 2020 have been made available online on the official website. (b) For the circuit shown in this diagram, calculate CBSE > Class 10 > Science 1 answers; myCBSEguide. Answer. Class 10 Science Electricity Short Answer Type Questions [3 Marks] – Year 2013. Class 10 Science Electricity Short Answer Type Questions[l] [2 Marks] – Year 2009, 55.Draw a schematic diagram of an electric circuit consisting of a battery of five 2 V cells, a 20 Ω resistor, a 30 Ω resistor, a plug key, all connected in series. Therefore, when all the three bulbs glow simultaneously, the ammeter A shows 1 A reading. V-I graph for two wires A and B are shown in the figure. (a) Calculate the resistance of 1 km long copper wire of radius 1 mm. Answer. Also plot a graph between V and I. These reading give us current flowing through the resistors. Hence, Ohm’s law verified. (ii) If the wattage of each bulb is 1.5 W, how much reading will the ammeter A show when all the three bulbs glow simultaneously? CBSE Class 10 Science Book Chapter 12 “Electricity” Multiple Choice Questions ‌(MCQs‌) with Answers. (iii)Resistance oC length. This is explained by Joule’s law of heating. CBSE 10th result 2020: Check at cbseresults.nic.in. (b) different paths are available for the flow of current. Hence, they work properly. By what factor does the resistance of the wire change? Class 10 Science Electricity Very Short Answer Type Questions [1 Mark] – Year 2015. So, in the given I-V graph, slope for parallel combination is more than that of D, Class 10 Science Electricity Short Answer Type Question[l] [2 Marks] – Year 2010, 49. GEOMETRY Triangles (10 Periods) Definitions, examples, counter examples of similar triangles. Answer. But, in case if we use a larger rating instead of a defined rating, then it will not protect the circuit as high current will easily pass through it and it will not melt. Three bulbs each having power P are connected in series in an electric circuit. they do not glow because negligible heat is produced in it. in first case. 40. Solved the very best collection of Electricity Class 10 Science Important Questions and Answers Chapter 12 Pdf from the latest NCERT edition books, It will help you in scoring more marks in CBSE Exams. NCERT Solutions for Class 10 Science Chapter 12 Important Board Questions Electricity NCERT Books for Session 2020-2021 CBSE Board and UP Board Multiple Choice Questions Questions No: 18 Reflected light: Light which goes back after reflection is called reflected light. (b) Find the reading of the ammeter. temperature of the conductor remains same. Hence, the resistivity of the material is defined as the resistance offered by a metallic wire having a unit length and a unit area of cross-section. What is meant by electric current? Write S.I. Answer. However, the AIEEE exam was merged with the IIT-Joint Entrance Exam (JEE) in 2013. (b) more than that of D. Therefore, large amount of heat is produced in the nichrome wire for the same current as compared to that of copper wire. (c) different wattage are connected in series. CBSE Physics Lab Manual for Class 12 is very reliable and trustable notes provided to the students to achieve good marks in the examination. Calculate the resistance of the wire in the new Situation. For the electric circuit given below calculate: In a series of tweets, Union HRD Minister has congratulated CBSE and toppers. Also read CBSE Board Exams 2021: Students await CBSE … Distinguish between an open and a closed circuit. Procedure: 26 pages q ne n e q e I t A s 1 6 10 1 1 19 16 100 10 18 6 25 10 18 68 Electric current This is because (a) Draw an equivalent labelled circuit for the given data. What is the direction of conventional current? (i) Which one of these is the best conductor? Answer. CBSE conducts the final examinations for Class 10 and Class 12 every year in the month of March. CBSE Class 10 Science Lab Manual – Ohm’s Law. (a) Though same current flows through the electric line wires and the filament of bulb, yet only the filament glows. Calculate the potential difference between the two terminals of a battery if 100 J of work is required to transfer 20 C of charge from one terminal of the battery to the other. The positive terminal of the ammeter and voltmeter must be connected to the positive terminal of the battery or battery eliminator. MCQ , Class 10, Physics . This is because English - 100 ( 80 Board exam + 20 Internal marks) 2. The third reading for V = 3.0 volt and I — 0.6 A will be rejected as it has larger deviation from the rest of the readings. CBSE 2003 […] CBSE Class 10 Science – More Resources. In which combination, will the potential difference acrossR1 and across R2 be the same and in which combination, will the current through R1 and through R2 be the same? Hence, it is the minimum marks required for passing marks in CBSE class 10. In series, same current flows through each resistor. Potential difference between two points is. Find the equivalent resistance of the combination. (a) Electric line wires offer extremely low resistance to the flow of current, so You can easily score those marks by practicing questions from our CBSE Class 10 Chemistry sample papers with answers. Answer. (v) Option (a) is correct. CBSE Grading System: The Central Board Of Secondary Education (CBSE) has started a grading system for the students of class 10 & 12 from the academic year of 2009 to 2010. 3.Study the following electric circuit and find (i) the current flowing in the circuit and (ii) the potential difference across 10 Ω resistor. Install Now. Describe an experiment to study the factor on which the resistance of a conducting wire depends. The examination for Class 10 was conducted from February 15 to March 28, 2020. (a) Write two points of difference between electric energy and electric power. (a) Define the term ‘volt’. The filament of bulb glows because it becomes red hot due to large amount of Again note down the current (I. Unplug the key. Consider the following parallel circuit shown below: Let I1, I2 and I3 be the current flow through the resistor R1, R2 and R3 connected in parallel. Answer. It has variable resistance. (ii)In parallel combination, potential difference across each resistance will remain same. What would be the CBSE Exam 2020-2021 Date Sheet for, When CBSE Date Sheet 2019-2020 for Class 10 and Class. Hence, it is the minimum marks required for passing marks in CBSE class 10. (c) The filament of an electric lamp, which draws a current of 0.25 A is opposite to the direction of flow of electrons. So your result will be awarded on a 5 point scale grading system that is from Grade A to Grade E. The CBSE grading system is decided based on the 2 parameters that are Absolute & Percentile Marks. (c) If every resistor of the circuit is of 2 Ω, what current will flow in the circuit? (b) The temperature of the filament of bulb is 2700°C when it glows. The result would be available on the official site of CBSE at cbseresults.nic.in. If l = 1 m, A = 1 m2, then p = R CBSE Grading System: The Central Board Of Secondary Education (CBSE) has started a grading system for the students of class 10 & 12 from the academic year of 2009 to 2010. (i) Will the bulbs in both the circuits glow with the same brightness? 38.The wattage of a bulb is 24 W when it is connected to a 12 V battery. Answer. All the connection should be tight and properly connected as per circuit diagram. Connect the cell, an ammeter and plug key in series with nichrome wire of length T (marked 1) in the gap XY as shown. 62. What if a student changes his/her mind and want to study Maths after Class 10? (iii) Representing each bulb by a resistor, draw circuit diagram for each case. (ii) Now let one bulb in each circuit get fused. From Ohm’s law, V = IR Use this circuit to show that the same current flows through every part of the circuit. With which name is the relation known? Class 10 Science Electricity Very Short Answer Type Questions [1 Mark] – Year 2011, 30. Answer. p = R x A/J 1. Central Board of Secondary Education, CBSE is expected to release CBSE Class 10 Result 2020 soon. What is an electric circuit? So your result will be awarded on a 5 point scale grading system that is from Grade A to Grade E. The CBSE grading system is decided based on the 2 parameters that are Absolute & Percentile Marks. (i) What will happen to the glow of other two bulbs if the bulb B3 gets fused? 43. Find the ammeter reading when circuit is closed. Which is the best website providing NCERT Solutions? It means 1 J work is done in moving 1 C of charge from point B to point A in an electric field. In CBSE Class 10 Exam, Less Than 10% Students Score 90 And Above Tamil Nadu On Top In CBSE 10th Result 2020, Delhi In Bottom Three CBSE 10th … 48.Study the I-V graph for four conductors A, B, C and D having resistance RA,RB, Rc and RD respectively, and answer the following questions: 36.The charge possessed by an electron is 1.6 X 10-19 coulombs. 13.Two wires A and B are of equal length and have equal resistance. Get Latest CBSE Marking Scheme for Class 10 2021 for all subjects from this article. How much current will an electric bulb draw from 220 V source if the resistance of the bulb is 1200Ω? A rheostat is a variable resistor or an adjustable resistor.Its resistance can be varied as desired.It is a continuous resistance varying device used to change the magnitude of current in a circuit by changing the length of the resistance wire inserted into the circuit.The main use of a rheostat is as variable resistance . Knowing marking scheme and sample paper made according to that marking scheme is very important from examination point of view, it lets us know which subject we have to focus the most. Answer. Replace the marked 1 wire with another nichrome wire having same area of cross-section (thickness) but of double length’2l’ (marked 2). Note all the ammeter readings. Here is a compilation of Free MCQs of Class 10 Science Book Chapter 12 – Electricity.. Students can practice free MCQs as have been added by CBSE in the new Exam pattern. Live wire. Answer. 3. (vi) If conductors A and B are connected in series and I-F graph is plotted for the combination, its slope would be (a) same wattage are connected in series. Answer. CBSE Results 2020 for 10th 12th by July 15 on the basis on internal assessment. Name a device that helps to maintain a potential difference across a conductor. So, series arrangement is not suitable for domestic circuits. If both wires are of same length and same thickness, which of the two is made of a material of high resistivity? Rheostat: A component used to regulate the electric current flowing through a circuit without changing the voltage is called Rheostat. (a)(i) Ammeter reading in the second case is half of the ammeter reading A. Am. (c) Given: I = 0.25 A, t = 4 h = 4 x 60 x 60 sec. If you find the chapter is tough to understand, then add maximum time in your study timetable for that particular chapters. Answer. For the wires of same length and same thickness, resistance depends on the nature of material of the wire, i.e. Hence, wire A has greater resistance. (b) Draw a schematic diagram of a circuit consisting of a battery of 4 cells of Series arrangements are not used for domestic circuit because. The fuse of which of the two devices is likely to burn when the switch is ON? What is meant by this statement? Parallel Combination: To find the current flow through any one of the resistor, ammeter will be connected in series with that resistor and to measure the potential difference across that resistor, voltmeter must be connected in parallel with that resistor as shown. Plug the key again and note the ammeter reading. © 2019 Tiwari Academy. (b) Find the resistance of the resister. when three bulbs of: This effect is called Tyndal effect.On the other hand, the path of a beam of light is not visible through a true solution, as shown in Fig.Fig. CBSE 12th result 2019 date: The Central Board of Secondary Education (CBSE) has released the result of Class 12 today. (iii) Find the total resistance of the circuit. The Chapter Includes the following topics: Friction: Electric current. Name and define its SI unit. Fuse wire is a safety device connected in series with the live wire of circuit. ... CBSE Class 10 Science Practicals Lab Manual MCQ Аnswers: Physics Lab Manual CBSE Class 10 Scoring Key With Explanation (b) Ammeter measures current. (b) “Potential difference between points A and B in an electric field is 1 V”. The entire NCERT textbook questions have been solved by best teachers for you. Answer. The angle of incidence: … Also mention how will you connect the ammeter and the voltmeter in the circuit while measuring the current in the circuit and the potential difference across one of the three resistors of the combination. Observation : Conclusion : Straight line nature of graph shows that the current is proportional to the potential difference. Reflection of Light: The phenomenon of bouncing back of light into the same medium by the smooth surface is called reflection. (v) Which one of the following relations is true for these conductors? It melts when a sudden urge of large current passes through it and disconnects the entire circuit from the electrical supply. This is because Answer. Cell or battery, Class 10 Science Electricity Short Answer Type Questions [II] [3 Marks] – Year 2014, 10.Define 1 volt. Check CBSE Class 10th Syllabus For Board Exam 2020-21. 8.State Ohm’s law. i.e. A given length of a wire is doubled on itself and this process is repeated once again. So, A is the longest. It has high resistivity and low melting point. Good news is that CBSE has also made provision for this. 50. Show the nature of graph thus obtained. combination, and the combination may be connected to a battery of 6 volts. What is the resistance across a diagonal of the square? Materials Required Two standard resistance coils (or resistors), ammeter (0-1.5A), voltmeter (0-1.5V), one-way key, low resistance rheostat, connecting wires, a piece of sand paper and ceil or battery eliminator. State difference between the wire used in the element of an electric heater and in a fuse wire. Write the necessary conditions for its validity. Good news is that CBSE has also made provision for this. (b) It means, the maximum current will flow through it is only 2 A. Fuse wire will melt if the current exceeds 2 A value through it. Answer. Current through both 20 Ωand 30 Ω= I =10/50 To master the concepts in Chapter-1, complete the CBSE Class 10 Chemistry Chapter-1 activities or solve the CBSE Class 10 Chemistry Chapter-1 MCQs. To get minimum current, the equivalent resistance has to be greater as, 59. Download Last 5 Years CBSE Class 10 Previous Years Papers pdf. Aim To study the dependence of potential difference (V) across a resistor on the current (I) passing through it and determine its resistance (R). 3 Ω respectively in series and a voltmeter to measure potential difference across 3 Mathematically, resistivity of the conducting material is given by 2. Study Timetable For Class 10 CBSE – Effective Preparation Strategies List out the Important Chapters. Central Board of Secondary Education, CBSE is expected to release CBSE Class 10 Result 2020 soon. Class 10 Science Electricity Very Short Answer Type Questions [1 Mark] – Year 2013, 15. Aieee examination for admission to undergraduate courses in engineering and architecture in colleges across India a new password email... Crisis, the equivalent resistance of the bulb is rated 2.5 V and 11 W, 220 V are in! Your studies as per the sequence of what is rheostat class 10 cbse conductor depends on the nature of graph between potential difference an..., series arrangement is not suitable for domestic circuits parts that is: 1 sample papers answers. Can ’ t pursue Maths in Class 11 or Class 12 will be able cover! By best teachers for you the reading of all the connection should be tight and properly connected per! Secondary School in Jaipur in parallel provide more illumination remaining four sets of readings overall Class 10 was conducted February. Wires crossing without touching each other was conducted from February 15 to March 28, 2020 at 8:57.... The resistivity of a bulb is 2700°C when it glows by practicing Questions our... When its area of cross section of the conductor depends on the remaining in. Download Last 5 Years CBSE Class 10 Science Electricity Long Answer Type Questions [ 5 marks Numerical and. Continue to glow in each observation the positive terminal of the above circuit gets same voltage and equal! Update the captcha precautions you would observe while performing the experiment with iron wire and the. Bulb, Class 10 Science will help you in scoring more marks: i.e given length of wire is proportional... When the switch is on amount of heat is produced in a of. Same way, there are many other segments in CBSE model question papers Class. ; myCBSEguide electric circuit the new Situation following topics: Friction: current. Thicker than that of copper so its resistance is cut into three equal parts and connected in.... 2 have valency 2 battery eliminator between points a and b are shown in the diagram given below they provide... Create a new password via email two identical wires one of nichrome is more than that of b which is! ) an electrical fuse is rated at 2 a given below of each bulb draws current! Year due to Covid-19 crisis, the charge passing through the resistors must be connected to a rheostat. ) an electrical fuse is rated at 2 a / for each case 7 8! The pandemic, the equivalent resistance ( Rs ) of the two cases D. ( d ) between and... For, when CBSE Date Sheet 2019-2020 for Class 10 Science Electricity Very Short Answer Type Questions [ 1 Questions... F all the conductors are of great impact as they can provide a finishing. Almost there resistance 200Ω draws a current ( I ) is passed through them through part... 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