In a suspended type moving coil galvanometer the coil has 60 turns, each of area `2 xx 10^(-4)m^(2)`
Channel: Doubtnut
Date: 2021-11-02

In a suspended type moving coil galvanometer the coil has 60 turns, each of area `2 xx 10^(-4)m^(2)` and the strength of the magnetic field is 0.001 T. A current of 20 mA produced a deflection of 10 cm on a scale at a distance of 1m form the instrument. Calcualte the torque per unit twist.