a coil of `1200` turns and mean area of `500 cm^(2)` is held perpendicular to a uniform magnetic
Channel: Doubtnut
Date: 2020-02-09

a coil of `1200` turns and mean area of `500 cm^(2)` is held perpendicular to a uniform magnetic field of induction `4 xx 10^(-4) T`. The resistance of the coil is `20` ohms. When the coil is rotated through `180^(@)` in the magnetic field in `0.1` seconds the average electric current (in `mA`) induced is :