Question

if a sine wave representing ac voltage has an effective value of 70 vac what would be the waves peak value​

Answer 1

99 V

Step-by-step explanation:

The effective voltage of an AC current (also called rms voltage) is given by

`V_(rms) = (V_0)/(√(2))`

where

Vrms is the rms voltage

V0 is the peak voltage

In this problem, we know the effective voltage:

`V_(rms) = 70 V`

Therefore, we can re-arrange the equation to find the peak voltage:

`V_0 = V_(rms) √(2) =(70 V)(√(2))=99 V`