Fund. of Electronics
posted by Brendon on .
What is the peak to peak Voltage across a 10 kilo ohm resistor that dissipates 50 mW?

The rms voltage Vrms satisfies the equation
P = 50*10^3 W = Vrms^2/R = V^2/50*10^3 ohms
Vrms^2 = 50^2
Vrms = 50 V
The peak to peak voltage is higher by a factor of sqrt2
V(pp) = 70.7 V