A rectangular coil in a motor rotates clockwise when viewed from the front
PHYSICS · Subjective · CBSE · Physics · Magnetic Effects of Electric Current · Magnetic Effects of Electric Current
Problem
A rectangular coil in a motor rotates clockwise when viewed from the front. Predict the direction of rotation in each of the following cases and give a short reason:
(a) Only the direction of the magnetic field is reversed, keeping the current direction unchanged.
(b) Both the magnetic field direction and the current direction are reversed simultaneously.