Question

If a current of `7 A` passing through a circuit generates `9 W` of power, what is the resistance of the circuit?

Answer 1

`R = 9/7^2 approx 0.18 Omega`

Explanation:

`P = I^2 R`
`9 = 7^2 R`

`R = 9/7^2 approx 0.18 Omega`