A current carrying loop is placed in a uniform magnetic field. The torque acting on it does not depend upon

Options

A. are of loop
B. no. of turns in loop
C. shape of loop
D. strength of current and magnetic field

Answer

C

Explanation

The torque acting on a current carrying loop kept in a uniform magnetic field of induction B is given by
`tau =nIABsin theta`
It depends upon n, I, A, B and `theta.` But it does not depend upon the shape of the loop (rectangular, circular, triangular, etc.)