The average output of the ac generator is 70 V. What is the maximum value of the voltage produced by the generator?

99 V
70 V
49 V
35 V

99 V

Explanation:

An ac generator produces an Alternating Current (AC), which is a current in which the direction of the current is periodically reversed.

For such a current, the value of the voltage oscillates periodically between a minimum and maximum value:

where is called peak voltage.

The average value of the voltage of an ac current is the value of the voltage at which a dc current would be dissipate the same power. It is also called rms value, and it is given by

In this case, we know that the rms value is

Therefore, the maximum voltage will be:

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