(a) With the help of a diagram, explain the principle and working of a device which produces current that reverses its direction after regular intervals of time.
(b) If a charged capacitor C is short circuited through an inductor L, the charge and current in the circuit oscillate simple harmonically.
(i) In what form the capacitor and the inductor stores energy?
(ii) Write two reasons due to which the oscillations
become damped.
(a) AC generator
Diagram
Principle
Working
(b) (i) Capacitor - electric field
Inductor - magnetic field
(ii) resistance of the circuit
Radio truning
Radiation in the form of EM waves