Alternating Current: Practice Problem & Solution

Solution Explained:

To solve this problem, we apply the core principles of Alternating Current. Understanding the underlying formula is key to arriving at the correct answer below:

The root-mean-square (rms) voltage for a sinusoidal alternating voltage is given by $V_{rms} = \frac{V_0}{\sqrt{2}}$. Rearranging for peak voltage $V_0$, we get $V_0 = \sqrt{2} V_{rms}$. Hence, the peak voltage is $\sqrt{2}$ times the rms value of the ac source.