Question

The formula for electrical power, \displaystyle PP , is \displaystyle P=I^{2}RP=I 2 R , where \displaystyle II is current and \displaystyle RR is resistance. The formula for \displaystyle II in terms of \displaystyle PP and \displaystyle RR is:

Answer 1

I = √(P/R)

Explanation:

Given the formula for electric power, we want to rewrite the formula in terms of I

What this means is that we want to make I the subject of the formula;

From ;

P = I^2R

I^2 = P/R

I = √(P/R)