A moving coil galvanometer has 100 turns and each turn has an area `2.0 cm^2`. The magnetic field
Channel: Doubtnut
Date: 2020-07-05

A moving coil galvanometer has 100 turns and each turn has an area `2.0 cm^2`. The magnetic field produced by the magnet is `0.01 T`. The deflection in the coil is `0.05` radian when a current of `10 mA` is passed through it. Find the torsional constant of the suspension wire.