(a) Define the term “area vector” for a current-carrying loop and state how its…
PHYSICS · Multi-part · CBSE · Physics · Moving Charges and Magnetism · Moving Charges and Magnetism
Problem
(a) Define the term “area vector” for a current-carrying loop and state how its direction is chosen.
(a) Define the term “area vector” for a current-carrying loop and state how its direction is chosen.
(b) A rectangular current loop is placed in a uniform magnetic field. Describe qualitatively how the magnitude of the torque acting on the loop depends on the angle between the area vector of the loop and the magnetic field.
(c) Explain why the loop experiences zero torque when its plane happens to be perpendicular to the magnetic field even though current is flowing in it.