1 Oscilloscope Input

Peak Voltage ($V_p$): 10.0 V
Peak ($V_p$)
R.M.S. Value

The dashed blue line shows the "effective" DC equivalent voltage.

2 Quantitative Analysis

3 Visual Comparison

Notice that the Blue R.M.S. line sits at approximately 70.7% of the total height of the Green Peak.

Even though the voltage reaches the peak, the "average" power delivered is equivalent to the steady blue line level.