The diameter of cross-section of a wire is reduced by 50%. If the volume remains constant, what percent of length of the wire should be increased?

A wire is stretched by 1% but volume remains constant, then -

A wire of resistance 5 Omega is stretched 20%. IF the volume remains constant , find the new resistance.

Let L be the length and d be the diameter of cross section of a wire. Wires of the same material with different L and d are subjected to the same tension along the length of the wire. In which of the following cases, the extension of wire will be the maximum? L= 200 cm, d=0.5 mm L= 300 cm, d=1.0 mm L= 50 cm, d= 0.05 mm L=100 cm, d=0.2 mm

If each side of a cube is reduced by 50% , then the ratio of its initial and final volume will be

If each edge of a cube is increased by 50% , then how much the total surface area of the cube will be increased in percent?

If each edge of a cube is increased by 50% , then how much the total surface are a of the cube will be increased in percent ?

Two wires are made of the same material and have the same volume. The first wire cross sectional area A and the second wire has cross sectional area 3A. If the length of the first wire is increased by Delta l on applying a force F, how much force is needed to stretch the second wire by the same amount?

IF the length of a copper wire is increased by 0.1%, show that the resistance of the copper wire will increase by 0.2%.

If each edge of a cube is increased by 50%, then how much the total surface area of the cube will be increased in percent?