Question

A conducting circular loop of radius r carries a constant current i . It is placed in a uniform magnetic field $B_0$ such that $B_0$ is perpendicular to the plane of the loop. The magnetic force acting on the loop is

• A. $ir B_0$
• B. $2 \pi ir B_0$
• C. zero
• D. $\pi ir B_0$

Answer 1

Answer: (C)

zero

Answer 2

Magnetic force on a current carrying loop in uniform magnetic field is zero.