Two conducting cylindrical wires are made out of the same material

PHYSICS · Single correct · CBSE · Physics · Electricity · Electricity

Problem

35. Two conducting cylindrical wires are made out of the same material. Wire

X

has twice the length and twice the diameter of wire Y . What is the ratio

R_{x} / R_{y}

of their resistances? (A)

\frac{1}{2}

(B) 1 (C) 2 (D) 4

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