Physics

Problem

Which of the following expressions gives electric power only in terms of potential difference

V

and resistance

R

? a)

P = \dfrac{V^{2}}{2R}

P = 2\,\dfrac{V^{2}}{R}

P = \dfrac{V^{2}}{R}

P = \dfrac{V^{2}}{\sqrt{2}\,R}