Question
Mon September 09, 2013 By: Rahul Agarwal
 

Two wires of equal lengths are bent in the form of two loops. One of the loops is square-shaped whereas the other loop is circular. These are suspended in a uniform magnetic field and the same current is passed through them. Which loop will experience greater torque? Give reasons.

Expert Reply
Tue September 10, 2013
The circular loop will experience greater torque  because it has larger area and hence greater magnetic moment.
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