Two wire of copper have length `L` and `2L` and cross section `2A` and A respectively .The ratio of their specific resistance would be would be

Two wires of same material have length L and 2 L and cross– sectional areas 4 A and A respectively. The ratio of their specific resistance would be

Two wires of same material have lengths, L and 2L and cross-sectional area 4A and A, respectively. The ratio of their resistances would be

Two copper wire of length l and 2l have radii, r and 2r respectively. What si the ratio of their specific resistance.?

Two copper wire of length l and 2l have radii, r and 2r respectively. What si the ratio of their specific resistance.?

Two wires of same material have length L and L/2 and radius r and r/2 respectively. The ratio of their Young's modulus is