A coil in the shape of an equilateral triangle of side l is suspended between the pole pieces of
Channel: Doubtnut
Date: 2020-08-23

A coil in the shape of an equilateral triangle of side l is suspended between the pole pieces of a permanent magnet such that`vec B ` is in the plane of the coil. If due to a current i in the triangle a torque `tau` acts on it, the side l of the triangle is