I am taking up electronics and bought some used test equipment. I have been measuring anything and everything, sometimes with unexpected results. Above is one of those cases.
The function generator is outputting a sine wave of 1kHz at 5Vpp. It shows up as expected on the oscilloscope. The multi-meter on the other hand shows 1.77Vac and 0.02Vdc Perhaps someone here would be kind enough to explain to me why the multi-meter does not display 5Vac?
Best Answer
Your meter reads AC in \$V_{rms}\$, which is very different from \$V_{pp}\$.
For sinusoidal signals:
\$ V_{rms} = 0.3535 \cdot V_{pp} = \frac{1}{2\sqrt{2}} \cdot V_{pp}\$
And therefore \$ 5V_{pp} = 1.767 V_{rms} \$
Also, because you've set your DC offset to 0V, the DC average of the sine wave is 0V, hence the \$0V_{dc}\$.
Therefore, both your measurements are exactly as expected.