Average value of current and voltage over a cycle of AC is:

Explanation

In an alternating current (AC) circuit, the current and voltage vary sinusoidally over time. The average value of an AC quantity over a complete cycle is zero because the positive and negative values cancel each other out. However, when we talk about the average *power* over a cycle, it is not zero.- A) Positive: The average value of the current or voltage alone is not positive over a cycle. - B) Negative: Similarly, the average value of the current or voltage alone is not negative over a cycle. - D) Zero: While the average value of current or voltage alone is zero, it's crucial to note that the average power (product of voltage and current) is not zero. The power alternates between positive and negative values, but when averaged over a cycle, it gives a non-zero result.So, option C is correct because the average value of both current and voltage over a cycle is zero, but the average power is not zero.