A wire is bent to form a square loop of side carrying a current of
PHYSICS · Subjective · CBSE · Physics · Moving Charges and Magnetism · Moving Charges and Magnetism
Problem
A wire is bent to form a square loop of side 12cm carrying a current of 3A. The loop is placed in a uniform magnetic field of 0.25T making an angle of 30∘ with the normal to the plane of the loop.
(a) Calculate the torque acting on the square loop.
(b) The same wire is reshaped into a single circular loop of the same area and kept in the same orientation in the field with the same current. Determine the new torque.