Question

An elastic circular wire of length $\ell$ carries an anticlockwise current l. It is placed in uniform magnetic field B (out of paper ) such that its plane is perpendicular to the direction of B . The wire will experience

• A. no force
• B. a stretching force
• C. a compressive force
• D. a torque

Answer 1

The correct option is B a stretching force

(b) On applying Fleming's left hand rule.

a stretching force

Hence, Option $B$ is correct.