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Physics - Current Electricity

Practise 104 COMEDK previous year questions on Current Electricity, compiled from papers spanning 2012 to 2026. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty COMEDK tests.

Current Electricity has been asked in 15 of the 15 years of COMEDK papers analysed (2012–2026), with 104 questions in all. 41% of them were easy, 52% moderate and 7% tough. Most of its questions came from 2024, with 22 questions that year. In the last three years (2024–2026) it had 52 questions across 10 papers, about 5.2 per paper.

The chapter's 10 topics are not weighted equally: Resistance and Resistivity (24 questions, 23%), Electric Instruments (21 questions, 20%), and Electric Current and Drift of Electrons (12 questions, 12%) have been asked the most. Over the last five years the most frequent topics have been Electric Instruments (11), Combination of Resistances (10), and Resistance and Resistivity (10). Resistance and Resistivity has produced the most tough questions (4).

  1. 1Current in a conductor is expressed as , where current I is measured in amperes and time t is measured in seconds. What is the charge that f09 May, 2026 (S1)Electric Current and Drift of Electrons
  2. 2In the given circuit, an ideal voltmeter connected across reads 5V. The internal resistance r of each cell is:09 May, 2026 (S1)Combination of Resistances
  3. 3A wire of length 1m has a resistance of at C. It is uniformly stretched so that its length increases by 21%. Assuming the volume of the wire09 May, 2026 (S1)Resistance and Resistivity
  4. 4A current of 3A enters one vertex P of an equilateral triangle PQR having three resistors of each forming the sides of the equilateral trian09 May, 2026 (S1)Kirchoffs Laws
  5. 5A galvanometer is shunted by a resistance of . If 8% of total current passes through the galvanometer, the value of S is:09 May, 2026 (S1)Electric Instruments
  6. 6The voltage – current graph for a metal wire of uniform area of cross section at two different temp T and T' is shown. Then choose the corre09 May, 2026 (S2)Resistance and Resistivity
  7. 7Find the current through the 40 resistor in the given circuit having a diode, three resistors and two cells.09 May, 2026 (S2)Kirchoffs Laws
  8. 8A series combination of 'n' cells of emf 'E' and internal resistance 'r' each, are connected across the external resistance 'R'. If the inte09 May, 2026 (S2)Electric Cell or Battery
  9. 9An electric coil is rated 400W, 200V. It is cut into two equal parts and connected in parallel to the same source of 200V. Calculate the per09 May, 2026 (S2)Electric Power and Heating Effect of Current
  10. 10A galvanometer of resistance 50 is having 30 divisions and a current sensitivity 10 mA/div. What should be the shunt resistance so that it c09 May, 2026 (S2)Electric Instruments
  11. 11A cell of emf 5 V and negligible internal resistance is connected across a conducting wire of cross-sectional area . If the electron density25 May, 2025 (Shift)Electric Current and Drift of Electrons
  12. 12What is the potential difference between A and B in the above circuit element?25 May, 2025 (Shift)Kirchoffs Laws
  13. 13In the figure shown above, a cell of negligible internal resistance and emf 22 V is connected to a network of resistors. If the power dissip25 May, 2025 (Shift)Wheatstone Bridge
  14. 14A galvanometer having 20 divisions has a resistance of . A deflection of one division in this galvanometer needs a current of 0.2 mA . What 25 May, 2025 (Shift)Electric Instruments
  15. 15A wire of resistance is bent to form a square loop. A 10 V battery negligible internal resistance is connected across the diagonals of the s25 May, 2025 (Shift)Combination of Resistances
  16. 16The resistance of a wire is 5 ohm at and 7 ohm at . The resistance of the wire at is10 May, 2025 (S1)Resistance and Resistivity
  17. 17If voltage across a bulb rated drops by of its rated value, the percentage of the rated value by which the power would decrease is10 May, 2025 (S1)Electric Power and Heating Effect of Current
  18. 18A student measures the terminal potential difference V of a cell (emf and internal resistance r) as a function of current I flowing through 10 May, 2025 (S1)Electric Cell or Battery
  19. 19Two identical conductors of lengths and 3 respectively are maintained at the same temperature. They are given potential differences in the r10 May, 2025 (S1)Electric Current and Drift of Electrons
  20. 20A galvanometer of resistance is connected to a battery of 4 V along with a resistance of in series. A full-scale deflection of 30 divisions 10 May, 2025 (S1)Electric Instruments
  21. 21Across the 220 V source of internal resistance , how many lamps of can be connected in parallel so that all the lamps may glow with full bri10 May, 2025 (S2)Combination of Resistances
  22. 22A galvanometer of resistance is converted into an ammeter using a shunt resistance of . If the same resistance is used to convert the same g10 May, 2025 (S2)Electric Instruments
  23. 23Two wires A and B made of same material having length 10 cm and 40 cm respectively are connected in parallel to the same source of emf 10 V 10 May, 2025 (S2)Electric Current and Drift of Electrons
  24. 24Ten cells, each having internal resistance and emf 1.5 V are connected in series. But unknowingly 3 cells are connected wrongly in series. T10 May, 2025 (S2)Electric Cell or Battery
  25. 25The resistance of the conductor is the angle made by the V-I graph with the voltage axis is10 May, 2025 (S2)Electric Current and Drift of Electrons
  26. 26The resistance of a heating element is found to be at room temperature which is . If the temperature coefficient of the material of the resi10 May, 2025 (S3)Resistance and Resistivity
  27. 27The power dissipated across the resistor in the circuit is 2 watts. The power dissipated in watt units across the resistor is:10 May, 2025 (S3)Combination of Resistances
  28. 28A galvanometer having a resistance of is shunted by a wire of resistance . If the total current is 2 A , the current passing through the shu10 May, 2025 (S3)Combination of Resistances
  29. 29A student measures the terminal potential difference of a cell of and internal resistance as a function of the current I flowing through it.10 May, 2025 (S3)Electric Cell or Battery
  30. 30The net resistance between the points A and B in the circuit given below is:10 May, 2025 (S3)Combination of Resistances
  31. 31A storage battery of emf and internal resistance is being charged by a dc supply using a series resistor of . The terminal voltage of the ba2024 (Afternoon Shift)Electric Cell or Battery
  32. 32The mobility of the charge carriers increases with2024 (Afternoon Shift)Electric Current and Drift of Electrons
  33. 33A wire of uniform cross section and resistance 4 ohms is bent in the shape of square ABCD. Point A is connected to a point on DC by a wire A2024 (Afternoon Shift)Wheatstone Bridge
  34. 34Two identical moving coil galvanometers have resistance and full-scale deflection at current. One of them is converted into a voltmeter of r2024 (Afternoon Shift)Electric Instruments
  35. 35The resistance of a wire at room temperature is found to be . If resistance of the wire increases by , then the temperature of the wire will2024 (Afternoon Shift)Resistance and Resistivity
  36. 36The resistance of a long wire is . Its length is increased by by stretching the wire uniformly. The new resistance is2024 (Evening Shift)Resistance and Resistivity
  37. 37Three bulbs of , and are arranged in series with a source. The maximum light is obtained from2024 (Evening Shift)Electric Power and Heating Effect of Current
  38. 38Figure below shows a network of resistors, cells, and a capacitor at steady state. What is the current through the resistance 4 ?2024 (Evening Shift)Kirchoffs Laws
  39. 39Four resistors, each of resistance R, are connected as shown in the figure below. Which of the following options is correct?2024 (Evening Shift)Combination of Resistances
  40. 40A voltmeter of resistance div is to be converted into a voltmeter to make it to read . The value of high resistance to be connected in serie2024 (Evening Shift)Electric Instruments
  41. 41An electric bulb is rated at 220 V and 100 W . Power consumed by bulb when operated at 110 V will be2024 (Memory Based)Electric Power and Heating Effect of Current
  42. 42A battery of emf 12 V and negligible resistance is connected across the diagonally opposite corners of a cubical network consisting of 12 re2024 (Memory Based)Combination of Resistances
  43. 43The resistor of resistance is connected to 25 V supply and heat produced in it is . The value of is2024 (Memory Based)Electric Power and Heating Effect of Current
  44. 44If the length of a wire is increased by by stretching it, then its resistance is increased to2024 (Memory Based)Resistance and Resistivity
  45. 45For a cell, - graph is given below. Which of the following options gives correct value of emf of cell and its internal resistance?2024 (Memory Based)V-I graph
  46. 46The drift velocity of free electrons in a conducting wire is the order of . Yet, the bulb glows very quickly after the switch is put ON beca2024 (Memory Based)Electric Current and Drift of Electrons
  47. 47The current drawn from the battery by the network of resistors as shown in the figure is2024 (Memory Based)Combination of Resistances
  48. 48The resistance of the galvanometer and shunt of an ammeter are and respectively, then the fraction of the main current passing through the g2024 (Morning Shift)Electric Instruments
  49. 49A heating unit is designed to operate on a line. If line voltage drops to , the percentage drop in heat output will be:2024 (Morning Shift)Electric Power and Heating Effect of Current
  50. 50The current through a conductor is ' ' when the temperature is . It is ' ' when the temperature is . The current through the conductor at is2024 (Morning Shift)Resistance and Resistivity

Frequently Asked Questions

1.How many questions are available for Current Electricity?

This chapter includes 104 questions compiled from COMEDK papers spanning 2012 to 2026.

2.Are these questions only from COMEDK, or from other exams too?

These are COMEDK questions specifically for the Current Electricity chapter. Questions from other exams like JEE Main or NTA Abhyas (JEE Main) are organised separately under their respective exam sections.

3.Is Current Electricity an important chapter for COMEDK Physics?

Current Electricity has appeared in 15 of the 15 years of COMEDK papers covered here, with 104 questions across 24 papers - about 4 per paper it appears in.

4.What is the difficulty level of Current Electricity questions in COMEDK?

Of the 104 questions analysed for this chapter, 41% are easy, 52% moderate and 7% tough. 2024 had the most, with 22 questions.

5.Which topics in Current Electricity should I focus on?

These topics have carried the most weightage in Current Electricity:

  • Resistance and Resistivity - 24 questions (23%)
  • Electric Instruments - 21 questions (20%)
  • Electric Current and Drift of Electrons - 12 questions (12%)
  • Resistance and Resistivity has produced the most tough questions (4).
6.Is Current Electricity's weightage in COMEDK going up or down?

Across all 24 papers analysed, Current Electricity has averaged about 4.3 questions per paper. In the last three years (2024–2026), that average has risen, at about 5.2 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.