A conducting circular loop of radius \( r \) carries a constant cur... VIDEO
A conducting circular loop of radius \( r \) carries a constant current \( i \). It is placed in a uniform magnetic field B such that \( \mathbf{B} \) is perpendicular to the plane of the loop. The magnetic force acting on the loop is
(A) ir B
(B) \( 2 \pi r i B \)
(C) zero
(D) \( \pi \mathrm{ri} \mathrm{B} \)
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