Solve the formula I/RL =E for r

Question

I/RL =E for r

Answer 1

The equation is I / RL = E and solve for R.

Multiply each side by R.

(I / RL) * R = E * R

I / L = E * R

Divide each side by E.

(I / L) / (E) = (E * R) / (E)

I / LE = R

The value of R = I / LE.