In Fig. `ABCD` is a fixed smooth conducting frame in horizontal plane. `T` is bulb of power `
Channel: Doubtnut
Date: 26/07/2020

In Fig. `ABCD` is a fixed smooth conducting frame in horizontal plane. `T` is bulb of power `100 W , P` is a smooth pulley and `OQ` is a conducting rod. Neglect the self-inductance of the loop and resistance of any part other than the bulb. The mass `M` is moving down with constant velocity `10 ms^(-1)`. Bulb lights at its rated power due to induced emf in the loop due to earth's magnetic field. Find the  mass `M` (in kg) of teh block. (g = 10 ms^(2))`