What is the total force on any arbitrary current carrying loop in a uniform magnetic field ? Prove your answer

1 Answer
Sep 18, 2015

The force is zero.

Explanation:

The force on a current carrying wire moving in a uniform magnetic field #B# is given by:

#F=I (BxxL)#

The direction of the vector #L# is the same as the direction of the current through the wire #(I)#.

If the wire is a closed loop then vector #L# starts and finishes at the same place so is zero.

So:

#F=I(Bxx0)=0#