- #1

- 58

- 0

**[SOLVED] Average Potential Difference**

**1. Homework Statement**

The voltage across the terminals of an ac power supply varies with time according to V=V_0\cos(\omega t). The voltage amplitude is V_0 = 46.0 V

From the prior question, I already figured out that the root-mean-square potential difference is 32.5. V

**Question**What is the average potential difference V_{{\rm a}{\rm v}} between the two terminals of the power supply?

**2. Homework Equations**

[tex]V_{rms}=V/\sqrt{2}[/tex]

[tex]V_{rms}=Vcos(\omega*t+\varphi)[/tex]

**3. The Attempt at a Solution**

At first I thought that the average and the rms was the same thing, but now I can't figure it out. Does it involve finding current?