PHYSICS · Single correct · A Level · Physics · Electricity · Electricity
Problem
Two metallic wires P and Q are tested separately. Their V–I graphs are straight lines through the origin. The slope of the line for P is steeper than that for Q. Which statement about their resistances is correct?
(a) RP=RQ
(b) RP<RQ
(c) RP>RQ
(d) The resistances cannot be compared from the given data