The equation of a.c.in a circuit is `I = 50 sin 100 pi t`. Find (i) frequency of a.c.
(ii) mean value of a.c over positive half cycle
(iii) value of current `(1)/(300) s` after it was zero.

Explanation

To solve the given problem step by step, we will address each part of the question systematically.

### Given:
The equation of the alternating current (AC) is:
\[ I = 50 \sin(100 \pi t) \]

### (i) Find the frequency of AC.

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