Current I is flowing in a conducting circular loop of radius R. It is kept in a magnetic field B which is perpendicular to the plane of circular loop. Find the magnetic force acting on the loop:

Question

Current I is flowing in a conducting circular loop of radius R. It is kept in a magnetic field B which is perpendicular to the plane of circular loop. Find the magnetic force acting on the loop: (A)  IRB  (B)  2π IRB  (C) zero (D)  π IRB

Tardigrade Admin · Accepted Answer

When a loop (of any size) is placed in a magnetic field, then the force acting on the loop is iRB.

Q. Current $I$ is flowing in a conducting circular loop of radius $R$ . It is kept in a magnetic field $B$ which is perpendicular to the plane of circular loop. Find the magnetic force acting on the loop:

$I RB$

$2 π I RB$

zero

$π I RB$

When a loop (of any size) is placed in a magnetic field, then the force acting on the loop is $i RB .$

Q. Current I is flowing in a conducting circular loop of radius R. It is kept in a magnetic field B which is perpendicular to the plane of circular loop. Find the magnetic force acting on the loop:

IRB

2πIRB