A small coil has a self-inductance of 10 μH. A sinusoidal current of amplitude 0.1 A and frequency 1 kHz passes through the coil.
(a) Calculate the emf measured on the coil.
(b) What is the voltage if frequency changes to 100 kHz.
(c) Calculate the emf at 1 kHz for a 10 mH coil.