JEE Main Physics: Electromagnetic Induction Practice Questions

26 questions with answers and step-by-step solutions. Tap any question to see the full worked solution.

  1. Q1.
    A magnetic flux of 500 Weber passes through a coil of 10 turns in 0.1 seconds. What is the magnitude of the induced electromotive force in the coil?
    Easy
  2. Q2.
    Lenz's law is a consequence of the law of conservation of which physical quantity?
    Easy
  3. Q3.
    A conducting rod of length 1 meter moves with a velocity of 2 meters per second perpendicular to a magnetic field of 0.5 Tesla. What is the induced electromotiv
    Easy
  4. Q4.
    The self-inductance of a coil is 2 Henry. If the current in the coil changes at a rate of 5 Amperes per second, what is the induced electromotive force?
    Easy
  5. Q5.
    Which of the following units is equivalent to the Weber?
    Easy
  6. Q6.
    A circular coil of radius 10 cm and 500 turns is placed in a uniform magnetic field of 0.5 T such that the plane of the coil is perpendicular to the field. If t
    Medium
  7. Q7.
    A metal rod of length 1 meter rotates about one end with an angular velocity of 20 radians per second in a uniform magnetic field of 0.5 Tesla directed perpendi
    Medium
  8. Q8.
    A square loop of side 10 cm and resistance 0.5 ohm is moved out of a magnetic field of 1 Tesla at a constant velocity of 2 meters per second. What is the power
    Medium
  9. Q9.
    Two coils have a mutual inductance of 0.005 Henry. If the current in the primary coil changes from 5 Ampere to 2 Ampere in 0.01 seconds, what is the induced EMF
    Medium
  10. Q10.
    A solenoid of length 0.5 m has 1000 turns and across-sectional area of 10 square centimeters. What is the self-inductance of the solenoid?
    Medium
  11. Q11.
    A square loop of side length Land resistance R is placed in a time-varying magnetic field B = B0 sin(omega t) directed perpendicular to the plane of the loop. W
    Hard
  12. Q12.
    A conducting rod of length L rotates with angular velocity omega about one end in a uniform magnetic field B perpendicular to the plane of rotation. The induced
    Hard
  13. Q13.
    A solenoid of length l, radius r, and n turns per unit length carries a current I = I0 cos(omega t). The induced electric field at a distance r/2 from the axis
    Hard
  14. Q14.
    A metal disc of radius R rotates with angular velocity omega in a uniform magnetic field B perpendicular to its plane. The potential difference between the cent
    Hard
  15. Q15.
    A circular loop of radius r is placed in a magnetic field B = B0(1 - t/T) directed perpendicular to the plane. The induced current in the loop with resistance R
    Hard
  16. Q16.
    A coil of self-inductance 5 Henry is carrying a current of 2 Amperes. If the current is reversed to 2 Amperes in the opposite direction in 0.5 seconds, what is
    Medium
  17. Q17.
    A square loop of side 10 cm and resistance 0.5 ohm is moved out of a uniform magnetic field of 1 Tesla with a constant velocity of 2 meters per second. What is
    Medium
  18. Q18.
    A solenoid has 2000 turns per meter and across-sectional area of 0.01 square meters. A small coil of 50 turns is wound tightly around the center of the solenoid
    Medium
  19. Q19.
    Along solenoid of radius R and n turns per unit length carries a time-varying current I = I0 cos(omega t). What is the magnitude of the induced electric field a
    Hard
  20. Q20.
    A metal rod of length L rotates with angular velocity omega about an axis passing through one end and perpendicular to the rod in a uniform magnetic field B dir
    Hard
  21. Q21.
    A conducting disc of radius R rotates with angular velocity omega in a uniform magnetic field B perpendicular to the disc. What is the potential difference betw
    Hard
  22. Q22.
    A circular loop of radius r is placed inside along solenoid of radius R (where r < R) with n turns per unit length. If the current in the solenoid changes at a
    Hard
  23. Q23.
    The self-inductance of a coil is 2 Henry. If the current in the coil changes from 5 Amperes to 2 Amperes in 0.1 seconds, what is the induced electromotive force
    Easy
  24. Q24.
    Which of the following units is equivalent to the unit of magnetic flux?
    Easy
  25. Q25.
    A conducting rod of length 1 meter moves with a velocity of 2 meters per second perpendicular to a uniform magnetic field of 0.5 Tesla. What is the induced elec
    Easy
  26. Q26.
    Lenz's law is a direct consequence of the law of conservation of which physical quantity?
    Easy

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