Question

A current carrying loop of radius r carries a current I. It is placed in a magnetic field $B_0$ such that the plane of the coil is perpendicular to the magnetic field. The net force on the coil is

• A. $2\,\pi\,r\,I\,B_0$
• B. $\pi\,r^2\,I\,B_0$
• C. $2\,\pi\,r^2\,I\,B_0$
• D. $zero$

Answer 1

Answer: (D)

$zero$

Answer 2

On a current carrying loop no force acts on the loop in a uniform magnetic field.