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AIIMS2015PhysicsMagnetic Effects of Current

Assertion : When a magnetic dipole is placed in a non uniform magnetic field, only a torque acts on the dipole. Reason : Force would act on dipole if magnetic field is uniform.

Options

  1. AIf both assertion and reason are true and reason is the correct explanation of assertion.
  2. BIfboth assertion and reason are true but reason is not the correct explanation of assertion.
  3. CIf assertion is true but reason is false.
  4. DIf both assertion and reason are false.

Correct answer

D. If both assertion and reason are false.

Step-by-step solution

In a non-uniform magnetic field, a torque and a net force both act on the dipole. If magnetic field is uniform, net force on dipole would be zero.

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