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Physics - Electromagnetic Induction

Practise 34 AIIMS previous year questions on Electromagnetic Induction, 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.

Electromagnetic Induction has been asked in 15 of the 19 years of AIIMS papers analysed (2001–2019), with 34 questions in all. 47% of them were easy, 38% moderate and 15% tough. Most of its questions came from 2018, with 4 questions that year. In the last three years (2017–2019) it had 10 questions across 5 papers, about 2 per paper.

The chapter's 6 topics are not weighted equally: Magnetic Flux, Faraday's and Lenz law (11 questions, 32%), Self and Mutual Inductance (11 questions, 32%), and Induced Electric Field (5 questions, 15%) have been asked the most. Induced Electric Field has produced the most tough questions (2).

  1. 1For a toroid , radius , and area of cross section . Find inductance.26 May, 2019Self and Mutual Inductance
  2. 2A uniform coil of self-inductance and resistance is broken up into two identical coils. These two coils are then connected in parallel acros26 May, 2019Self and Mutual Inductance
  3. 3Assertion: A metallic surface is moved in and moved out in a magnetic field, then emf is induced in it. Reason : Eddy current will be produc25 May, 2019Motional and Rotational EMF
  4. 4Two identical circular coils and are kept on a horizontal tube side by side without touching each other. If the current in the coil increase27 May, 2018Magnetic Flux, Faraday's and Lenz law
  5. 5Assertion : Only a change in magnetic flux will maintain an induced current in the coil. Reason : The presence of large magnetic flux throug27 May, 2018Magnetic Flux, Faraday's and Lenz law
  6. 6The radius of the circular conducting loop shown in figure is . Magnetic field is decreasing at a constant rate . Resistance per unit length26 May, 2018Magnetic Flux, Faraday's and Lenz law
  7. 7A circular ring of diameter has a resistance of . The charge that will flow through the ring if it is turned from a position perpendicular t26 May, 2018Magnetic Flux, Faraday's and Lenz law
  8. 8As shown in figure, two vertical conducting rails separated by distance are placed parallel to -axis. At , a capacitor of is connected betwe2017Motional and Rotational EMF
  9. 9For MRI, a patient is slowly pushed in a time of within the coils of the magnet where magnetic field is . If the patient's trunk is in circu2017Magnetic Flux, Faraday's and Lenz law
  10. 10A circular coil of radius turns and resistance is placed with its plane perpendicular to the horizontal component of the earth's magnetic fi2017Magnetic Flux, Faraday's and Lenz law
  11. 11The self inductance of a coil having 400 turns is . The magnetic flux through the cross section of the coil corresponding to current is2015Self and Mutual Inductance
  12. 12Mutual inductance of two coils can be increased by2015Self and Mutual Inductance
  13. 13Assertion : An emf is induced in a closed loop when magnetic flux is varied. The induced electric field is not a conservative field. Reason 2015Induced Electric Field
  14. 14Two conducting circular loops of radii and are placed in the same plane with their centres coinciding. If , the mutual inductance between th2014Self and Mutual Inductance
  15. 15Which of the following is the best method toreduce eddy currents ?2013Induced Electric Field
  16. 16Two solenoids of equal number of turns having their length and the radii in the same ratio . The ratio of their self-inductance will be2013Self and Mutual Inductance
  17. 17Magnetic energy per unit volume is represented by2011Inductance
  18. 18Mutual inductance between two concentric coils of radii and is2011Self and Mutual Inductance
  19. 19Lenz law is consistent with conservation of2011Magnetic Flux, Faraday's and Lenz law
  20. 20A circular coil with a cross-sectional area of has 10 turns. It is placed at the center of a long solenoid that has 15 turns and a crosssect2010Self and Mutual Inductance
  21. 21A coil of wire of a certain radius has 100 turns and a self inductance of . The self inductance of a second similar coil of 500 turns will b2009Self and Mutual Inductance
  22. 22Assertion : Inductance coils are usually made of thick copper wire. Reason : Induced current is more in wire having less resistance.2008Inductance
  23. 23With the decrease of current in the primary coil from 2 amperes to zero value in \(0.01 {~s}\) the emf generated in the secondary coil is 102007Self and Mutual Inductance
  24. 24Faraday law of electrolysis indirectly shows2007Magnetic Flux, Faraday's and Lenz law
  25. 25A conducting ring of radius 1 meter is placed in a uniform magnetic field of 0.01 tesla oscillating with frequency with its plane at right a2005Induced Electric Field
  26. 26A magnet is made to oscillate with a particular frequency, passing through a coil as shown in figure. The time variation of the magnitude of2005Magnetic Flux, Faraday's and Lenz law
  27. 27In an ideal parallel circuit, the capacitor is charged by connecting it to a d.c. source which is then disconnected. The current in the circ2003Inductance
  28. 28Assertion : The possibility of an electric bulb fusing is higher at the time of switching on and off. Reason : Inductive effects produce a s2003LR Circuit
  29. 29The coefficient of mutual inductance, when magnetic flux changes by and current changes by is2002Self and Mutual Inductance
  30. 30Assertion : The quantity possesses dimension of time. Reason : To reduce the rate of increase of current through a solenoid, we should incre2002LR Circuit
  31. 31Assertion : Faraday's laws are consequences of conservation of energy. Reason : In a purely resistive A.C. circuit, the current lags behind 2002Magnetic Flux, Faraday's and Lenz law
  32. 32At a place earth's magnetic field, is acting perpendicular to a coil of radius . If , then how much current is induced in circular loop?2001Induced Electric Field
  33. 33If electron is moving from to in wire , then current induced in the coil is2001Magnetic Flux, Faraday's and Lenz law
  34. 34A small piece of metal wire is dragged across the gap between the pole pieces of a magnet in . If magnetic flux between the pole pieces is k2001Induced Electric Field

Frequently Asked Questions

1.How many questions are available for Electromagnetic Induction?

This chapter includes 34 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 Electromagnetic Induction chapter. Questions from other exams like NEET or JIPMER are organised separately under their respective exam sections.

3.Is Electromagnetic Induction an important chapter for AIIMS Physics?

Electromagnetic Induction has appeared in 15 of the 19 years of AIIMS papers covered here, with 34 questions across 17 papers - about 2 per paper it appears in.

4.What is the difficulty level of Electromagnetic Induction questions in AIIMS?

Of the 34 questions analysed for this chapter, 47% are easy, 38% moderate and 15% tough. 2018 had the most, with 4 questions.

5.Which topics in Electromagnetic Induction should I focus on?

These topics have carried the most weightage in Electromagnetic Induction:

  • Magnetic Flux, Faraday's and Lenz law - 11 questions (32%)
  • Self and Mutual Inductance - 11 questions (32%)
  • Induced Electric Field - 5 questions (15%)
  • Induced Electric Field has produced the most tough questions (2).
6.Is Electromagnetic Induction's weightage in AIIMS going up or down?

Across all 17 papers analysed, Electromagnetic Induction has averaged about 2.0 questions per paper. In the last three years (2017–2019), that average has stayed about the same, at about 2.0 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.