JEE Main Physics: Magnetism Practice Questions

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

  1. Q1.
    A particle of charge q moves with velocity v in a uniform magnetic field B. The force acting on the particle is given by which expression?
    Easy
  2. Q2.
    What is the magnetic field at the center of a circular coil of radius R carrying current I?
    Easy
  3. Q3.
    The magnetic susceptibility of a diamagnetic material is always:
    Easy
  4. Q4.
    Along straight wire carries a current I. The magnetic field at a distance r from the wire is proportional to:
    Easy
  5. Q5.
    The SI unit of magnetic flux is:
    Easy
  6. Q6.
    A proton and an alpha particle are accelerated through the same potential difference and enter a uniform magnetic field perpendicular to their velocity. The rat
    Medium
  7. Q7.
    Along straight wire carries a current of 10 A. A point P is at a distance of 5 cm from the wire. What is the magnitude of the magnetic field at point P?
    Medium
  8. Q8.
    Medium
  9. Q9.
    A solenoid of length 0.5 m has 500 turns and carries a current of 2 A. The magnetic field at the center of the solenoid is:
    Medium
  10. Q10.
    A thin circular ring of radius R and mass M carries a charge q uniformly distributed over its circumference. The ring is rotated about its axis with a constant
    Hard
  11. Q11.
    Along straight wire carries a current I. A rectangular loop of sides a and b is placed in the same plane such that the side of length a is parallel to the wire
    Hard
  12. Q12.
    A particle of mass m and charge q is projected with velocity v into a region of uniform magnetic field B directed perpendicular to the velocity. If the particle
    Hard
  13. Q13.
    A solenoid of length Land radius R has n turns per unit length. It carries a current I. What is the magnetic field at the center of the solenoid if it is very l
    Hard
  14. Q14.
    Two parallel wires separated by distance d carry currents I1 and I2 in the same direction. What is the force per unit length between them?
    Hard
  15. Q15.
    A thin disc of radius R with uniform surface charge density sigma is rotating with angular velocity omega about its central axis. What is the magnetic moment of
    Hard
  16. Q16.
    Along straight wire carries a current I. A rectangular loop of sides a and b is placed in the same plane such that the side of length a is parallel to the wire
    Hard
  17. Q17.
    A solenoid of length L, radius R, and N turns carries a current I. A small circular loop of radius r (where r is much smaller than R) is placed at the center of
    Hard
  18. Q18.
    A particle with charge q and mass m is moving in a region containing a uniform electric field E and a uniform magnetic field B, both directed along the z-axis.
    Hard
  19. Q19.
    A particle of mass m and charge q is projected with velocity v into a region of uniform magnetic field B directed perpendicular to the velocity. If the particle
    Hard
  20. Q20.
    Which of the following materials is diamagnetic?
    Easy
  21. Q21.
    Along straight wire carries a current I. The magnetic field Bat a distance r from the wire is proportional to which of the following?
    Easy
  22. Q22.
    The magnetic flux through a surface is given by the dot product of which two vectors?
    Easy
  23. Q23.
    A charge q moves with a velocity v in a uniform magnetic field B. The force experienced by the charge is given by which expression?
    Easy

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