Question

How much power is produced if a voltage of `10 V` is applied to a circuit with a resistance of `300 Omega`?

Answer 1

`1/3W`

Explanation:

We are given that `V=10V` and that `Omega=300Omega`. We know that `P=I^2R`, and we also know that `V=IR`. Using these two things, we can deduce that `P=V^2/R`, and when we plug in the numbers, we get:

`P=(10V)^2/(300Omega)=100/300=1/3`