question_answer

A negative charge is given to a loop and the loop is rotated in the plane of paper about its centre as shown, the magnetic field produced by the ring affects a small magnet placed above the ring in the same plane of paper.

A) the magnet does not rotate

B) the magnet rotates clockwise as seen by observer from below

C) the magnet rotates anti-clockwise as seen form below

D) none of the above.