A sinusoidal alternating current has a maximum value of 2 A. What is the average value over (a) half a cycle, (b) a full cycle? A rectangular shaped alternating voltage has a value of 5 V for half a...

A sinusoidal alternating current has a maximum value of 2 A. What is the average value over (a) half a cycle, (b) a full cycle?

A rectangular shaped alternating voltage has a value of 5 V for half a cycle and −5 V for the other half. What is the average value over (a) half a cycle, (b) a full cycle?