The area of the coil in a moving coil galvanometer is `15cm^(2)` and has 20 turns. The magnetic indu
Channel: Doubtnut
Date: 2020-02-17

The area of the coil in a moving coil galvanometer is `15cm^(2)` and has 20 turns. The magnetic induction is `0.2T` and the couple per unit twist of the suspended wire is `10^(-6) Nm` per degree. If the deflection is `45^(@)`, the current passing through it is