What is the torque exerted by a bar magnet on itself due to its field?(a) Maximum(b) Zero(c) Minimum(d) Depends on the direction of the magnetic fieldThis question was posed to me in a job interview.Question is taken from Magnetism and Gauss’s Law in section Magnetism and Matter of Physics – Class 12

What is the torque exerted by a bar magnet on itself due to its field?

1.	What is the torque exerted by a bar magnet on itself due to its field?(a) Maximum(b) Zero(c) Minimum(d) Depends on the direction of the magnetic fieldThis question was posed to me in a job interview.Question is taken from Magnetism and Gauss’s Law in section Magnetism and Matter of Physics – Class 12
Answer» Correct ANSWER is (b) ZERO The best EXPLANATION: A bar magnet does not exert a force or torque on itself due to its field. But an ELEMENT of a current-carrying conductor experiences FORCES due to another element of the conductor. So, the torque exerted by a bar magnet on itself is zero.

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