Two wires of the same material having lengths in the ratio `1 : 2` and diameters in the ratio `2 : 3` are connected in series with an accumulator. Compute the ratio of P.D. across the two wires.

Two wires of the same material have lengths in the ratio 1:2 and diameters in the ratio 2:1 . If they are stretched by the same force, the ratio of their expansion will be

Two wires of the same material but of lengths in the ratio 2:3 and diameters in the ratio of 3:2 are stretched with equal force. Then the ratio of elongations produced is

Two wires 'A' and 'B' of the same material have their lengths in the ratio 1 : 2 and radii in the ratio 2 : 1 The two wires are connected in parallel across a battery. The ratio of the heat produced in 'A' to the heat produced in 'B' for the same time is

Two wires 'A' and 'B' of the same material have their lengths in the ratio 1 : 2 and radii in the ratio 2 : 1 The two wires are connected in parallel across a battery. The ratio of the heat produced in 'A' to the heat produced in 'B' for the same time is

Two wires made of same material have lengths in the ratio 1:2 and their volumes in the same ratio. The ratio of their resistances is

Two wires of same material of unchanged lengths in the ratio 2: 3 and diameters in the ratio 3 : 2 are stretched with equal forces . What is the ratio of their elongation produced ?