Question

Electrical Engineering : Another problem that has raised after the eartquake was the loss of power connection but how can they check if they didn't know the resistance ? The formula they used is R= $\sqrt{PV}$. Suppose the voltage of the electrical post require 64.30 volts and the resistance is 73 ohms. How much power does the electrical post have ?

Answer 1

p=R^2/v
= 73×73÷64.30
= 5329÷64.30
= 82.89
hope it's gonna be right