A resistor has resistance $R$ and a potential difference $V$ is applied across it. The current through the resistor is $I$. Which equation gives the power $P$ dissipated by the resistor?
- A$P=V^2I$
- B$P=\frac{V^2}{I}$
- C$P=V^2R$
- D$P=\frac{V^2}{R}$
Physics 9702 · AS & A Level · Energy conservation