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Physics - Current Electricity

Practise 58 AIIMS previous year questions on Current Electricity, compiled from papers spanning 2001 to 2019. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty AIIMS tests.

Current Electricity has been asked in 18 of the 19 years of AIIMS papers analysed (2001–2019), with 58 questions in all. 47% of them were easy, 36% moderate and 17% tough. Most of its questions came from 2008, with 9 questions that year. In the last three years (2017–2019) it had 11 questions across 5 papers, about 2.2 per paper.

The chapter's 8 topics are not weighted equally: Electric Current and Drift of Electrons (16 questions, 28%), Electric Power and Heating Effect of Current (15 questions, 26%), and Electric Instruments (8 questions, 14%) have been asked the most. Electric Power and Heating Effect of Current has produced the most tough questions (3).

  1. 1Assertion : A bulb glows more than a bulb when they are connected in series across a potential difference. Reason : When they are connected 26 May, 2019Electric Power and Heating Effect of Current
  2. 2The current density in a solid cylindrical wire of radius , as a function of radial distance is given by . The total current in the radial r25 May, 2019Electric Current and Drift of Electrons
  3. 3Assertion : If the length of the conductor is doubled, the drift velocity will become half of the original value (keeping potential differen25 May, 2019Electric Current and Drift of Electrons
  4. 4In the circuit shown, the current through the resistor is27 May, 2018Kirchoffs Laws
  5. 5In a potentiometer experiment of a cell of emf gives balancing length of . If the cell is replaced by another cell, balancing length is foun27 May, 2018Electric Instruments
  6. 6Assertion : A current flows in a conductor only when there is an electric field within the conductor. Reason : The drift velocity of electro27 May, 2018Electric Current and Drift of Electrons
  7. 7A galvanometer of resistance is converted to a voltmeter of range by connecting a resistance of . The resistance required to convert the sam26 May, 2018Electric Instruments
  8. 8The measurement of voltmeter in the following circuit is2017Electric Instruments
  9. 9A meter bridge is set-up as shown, to determine an unknown resistance using a standard resistor. The galvanometer shows null point when tapp2017Wheatstone Bridge
  10. 10and are two points on a uniform ring of resistance . The , where is the centre of the ring. The equivalent resistance between and is2017Resistance and Resistivity
  11. 11Assertion : An electrical bulb starts glowing instantly as it is switched on. Reason : Drift speed of electrons in a metallic wire is very l2017Electric Current and Drift of Electrons
  12. 12A voltmeter of resistance reads 5 volt. To make it read 20 volt, the extra resistance required is2016Electric Instruments
  13. 13Ten identical cells each of potential and internal resistance are connected in series to form a closed circuit. An ideal voltmeter connected2016Electric Cell or Battery
  14. 14A steady current flows in a metallic conductor of non-uniform cross-section. Which of these quantities is constant along the conductor?2016Electric Current and Drift of Electrons
  15. 15On increasing the temperature of a conductor, its resistance increases because the2016Electric Current and Drift of Electrons
  16. 16What is the equivalent resistance between and in given figure?2015Combination of Resistances
  17. 17When a current is passed in a conductor, rise in temperature is observed. If the strength of current is made thrice, rise in temperature wil2015Electric Power and Heating Effect of Current
  18. 182,4 and are the conductances of three conductors. When they are joined in parallel, their equivalent conductance will be2014Resistance and Resistivity
  19. 19Assertion: Long distance transmission of a.c. is carried out at extremely high voltages. Reason: Because when the distance is large, voltage2014Electric Current and Drift of Electrons
  20. 20Assertion: Current is passed through a metallic wire so that it becomes red hot. When cold water is poured on half of its portion, the rest 2014Resistance and Resistivity
  21. 21Given that the mobility of electrons in Ge is and electronic charge is . The number of donor atom per ) semiconductor of conductivity is2013Electric Current and Drift of Electrons
  22. 22A circuit consisting of five resistors each of resistance , forming a Wheatstone bridge. What is the equivalent resistance of the circuit?2013Wheatstone Bridge
  23. 23Assertion : Electric appliances with metallic body. e.g., heaters, presses etc., have three pin connections, whereas an electric bulb has a 2013Electric Power and Heating Effect of Current
  24. 24Assertion : Total current entering a circuit is equal to leaving the circuit by Kirchhoff's law. Reason : It is based on conservation of ene2013Kirchoffs Laws
  25. 25Calculate for the given circuit diagram.2012Wheatstone Bridge
  26. 26Calculate the heat emitted by a bulb of in .2012Electric Power and Heating Effect of Current
  27. 27Transmission lines transmit a voltage of volt to our houses from power stations, then the power supplied by them is proportional to2010Electric Current and Drift of Electrons
  28. 28A galvanometer has a current sensitivity of per division. A variable shunt is connected across the galvanometer and the combination is put i2010Electric Instruments
  29. 29In the circuit shown, current flowing through cell is2010Kirchoffs Laws
  30. 30Assertion : It is advantageous to transmit electric power at high voltage. Reason : High voltage implies high current.2010Electric Power and Heating Effect of Current
  31. 31Reciprocal of impedance is2009Electric Current and Drift of Electrons
  32. 32When a current is passed in a conductor, rise in temperature is observed. If the strength of current is made thrice, then rise in temperatur2009Resistance and Resistivity
  33. 33In a metal with positive Thomson coefficient, current is passed from the lower temperature to higher temperature side. Then heat will be2009Electric Power and Heating Effect of Current
  34. 34A moving coil galvanometer has a resistance of . In order to send only of the main current through this galvanometer, the resistance of the 2009Electric Instruments
  35. 35The equivalent resistance between the points \(X\) and \(Y\) in the following circuit diagram will be2008Combination of Resistances
  36. 36A bulb and a condenser are connected in series with an A.C. source. On increasing the frequency of the source its brightness will2008Electric Power and Heating Effect of Current
  37. 37Two heater wires, made of the same material and having the same length and the same radius, are first connected in series and then in parall2008Electric Power and Heating Effect of Current
  38. 38A bulb of \(25 {~W}, 200 {~V}\) and another bulb of \(100 {~W}, 200 {~V}\) are connected in series with a supply line of \(220 {~V}\). Then2008Electric Power and Heating Effect of Current
  39. 39The curve between \( _e {J}{T^2}\) and \( {1}{T}\) is2008Electric Current and Drift of Electrons
  40. 40Assertion : A spark occur between the poles of a switch when the switch is opened. Reason : Current flowing in the conductor produces magnet2008Electric Current and Drift of Electrons
  41. 41Assertion : A bird perches on a high power line and nothing happens to the bird. Reason : The level of bird is very high from the ground.2008Electric Current and Drift of Electrons
  42. 42Assertion : In the following circuit, emf is \(2 {~V}\) and internal resistance of the cell is \(1 \) and \(R=1 \), then reading of the volt2008Electric Instruments
  43. 43Assertion: A domestic electrical appliance, working on a three pin will continue working even if the top pin is removed. Reason : The third 2008Electric Current and Drift of Electrons
  44. 44Assertion :A current continues to follow in superconducting coil even after switch is off. Reason : Superconducting coils show Meissner effe2007Electric Current and Drift of Electrons
  45. 45Assertion : Voltmeter is connected in parallel with the circuit Reason : Resistance of a voltmeter is very large.2007Electric Instruments
  46. 46Assertion : Ohm's law is applicable for all conducting elements. Reason : Ohm's law is a fundamental law.2007Electric Current and Drift of Electrons
  47. 47The voltage of clouds is volt with respect to ground. In a lightening strike lasting , a charge of 4 coulombs is delivered to the ground. Th2006Electric Power and Heating Effect of Current
  48. 48Flash light equipped with a new set of batteries, produces bright white light. As the batteries wear out,2006Electric Power and Heating Effect of Current
  49. 49e resistors connected as shown in figure, their values must be related as2005Electric Power and Heating Effect of Current
  50. 50Eels are able to generate current with biological cells called electroplaques. The electroplaques in an eel are arranged in 100 rows, each r2004Electric Cell or Battery

Frequently Asked Questions

1.How many questions are available for Current Electricity?

This chapter includes 58 questions compiled from AIIMS papers spanning 2001 to 2019.

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

These are AIIMS questions specifically for the Current Electricity chapter. Questions from other exams like NEET or JIPMER are organised separately under their respective exam sections.

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

Current Electricity has appeared in 18 of the 19 years of AIIMS papers covered here, with 58 questions across 20 papers - about 3 per paper it appears in.

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

Of the 58 questions analysed for this chapter, 47% are easy, 36% moderate and 17% tough. 2008 had the most, with 9 questions.

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

These topics have carried the most weightage in Current Electricity:

  • Electric Current and Drift of Electrons - 16 questions (28%)
  • Electric Power and Heating Effect of Current - 15 questions (26%)
  • Electric Instruments - 8 questions (14%)
  • Electric Power and Heating Effect of Current has produced the most tough questions (3).
6.Is Current Electricity's weightage in AIIMS going up or down?

Across all 20 papers analysed, Current Electricity has averaged about 2.9 questions per paper. In the last three years (2017–2019), that average has fallen, at about 2.2 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.