[" (ii) Two copper wires of length "1" and "21" have radii "r" and "2r],[" respectively.The ratio of their specific resistances is."]

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 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 the same material and same length have radii 1 mm and 2 mm respectively. Compare : their specific resistance.

Two copper wires A and B of length 30 m and 10 m have radii 2 cm and 1 cm respectively. Compare the resistances of the two wires. Which will have less resistance ?

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 length L and L/2 and radius r and r/2 respectively. The ratio of their Young's modulus is