Physics

Problem

A circular coil of 150 turns and radius

8\,\text{cm}

rotates at

600\,\text{rpm}

in a uniform magnetic field of

0.30\,\text{T}

. The coil is connected to a

20\,\Omega

resistor. a. (i) Calculate the rms current through the resistor. b. (ii) Determine the average power dissipated in the resistor.