shows a conducting disc rotating about its axis in a  perpendicular magnetic field B. A resistor of
Channel: Doubtnut
Date: 2020-07-12

shows a conducting disc rotating about its axis in a  perpendicular magnetic field B. A resistor of resistance R is connected  between the centre and the rim. Calculate the current in the resistor. Does it enter the disc or leave it at the centre? The radius of hte disc is 5.0 cm , angular speed `omega = 10 rad/s, B = 0.40 T` and `R = 10 Omega`.