Two conducting cylindrical wires are made out of the same material
PHYSICS · Single correct · A Level · Physics · Electricity · Electricity
Problem
44. Two conducting cylindrical wires are made out of the same material. Wire X has twice as much resistance than wire Y . Which of the following could be true?
(A) Wire X is twice the diameter of wire Y .
(B) Wire X is twice as long and twice the diameter of wire Y .
(C) Wire Y is twice as long and twice the diameter of wire X .
(D) Wire Y is twice as long as wire X .