Q108 / 180 · AIIMS 2015 · Physics

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.

  • A
    If both assertion and reason are true and reason is the correct explanation of assertion.
  • B
    Ifboth assertion and reason are true but reason is not the correct explanation of assertion.
  • C
    If assertion is true but reason is false.
  • Correct answer
    D
    If both assertion and reason are false.

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.

Hence, the correct answer is option: 'D'.

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