Assertion: We cannot think of magnetic field configuration with three poles.
Reason: A bar magnet does exert a torque on itself due to its own field.

Options

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

Answer

D

Explanation

When north poles or south poles of two magnets are joined together. There exists a three pole field configuration. Also, due to its own field, a bar magnet does not exert a torque on itself