Question

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.

(a) Both A and R are true and R is the correct explanation of A

(b) Both A and R are true but R is not correct explanation of A

(c) A is true but R is false

(d) A and R are false

Answer 1

Correct option  (d) A and R are false

Explanation:

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