Answer:
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:
[tex]-V_0, +V_0[/tex]
where [tex]V_0[/tex] 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
[tex]V_{rms}=\frac{V_0}{\sqrt{2}}[/tex]
In this case, we know that the rms value is
[tex]V_{rms}=70 V[/tex]
Therefore, the maximum voltage will be:
[tex]V_0=\sqrt{2}V_{rms}=\sqrt{2}(70)=99 V[/tex]
