Which of the following correctly gives the relation among potential difference ( )

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

Problem

Which of the following correctly gives the relation among potential difference (

V

), current (

I

) and resistance (

R

) for a metallic conductor at constant temperature? (a)

V = 2 I R

(b)

V = I R

(c)

V = I^{2} R

(d)

R = V I