Magnetics Ques 82
- A conducting circular loop of radius $r$ carries a constant current $i$. It is placed in a uniform magnetic field $\mathbf{B} _0$ such that $\mathbf{B} _0$ is perpendicular to the plane of the loop. The magnetic force acting on the loop is
(1983, 1M)
(a) $\operatorname{ir} \mathbf{B} _0$
(b) $2 \pi i r \mathbf{B} _0$
(c) zero
(d) $\operatorname{\pi ir} \mathbf{B} _0$
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Answer:
Correct Answer: 82.(c)
Solution:
Formula:
Magnetic Moment Of A Current Carrying Loop:
- Magnetic force on a current carrying loop in uniform magnetic field is zero.