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

Answer

D

Explanation

It is quite clear that magnetic poles always exist in pairs. Since one can imagine magnetic field configuration with three poles. When north poles or south poles of two magnets are glued togather. They provide a three-pole field configuration. It is also known that a bar magnet does not exert a torque on itself due to own its field.