Which of the following gives electric power directly in terms of current and resistance ?

PHYSICS · Single correct · A Level · Physics · Electricity · Electricity

Problem

Which of the following gives electric power directly in terms of current

I

and resistance

R

? (a)

P = 2I^{2}R

(b)

P = \dfrac{1}{2}I^{2}R

(c)

P = I^{2}R

(d)

P = 1.414\,I^{2}R