A steel wire of length 1.5 m and area of cross section `1.5mm^2` is stretched by 1.5cm. Then the work done per unit volume.

A steel wire of length 2.5 m and area of cross section 1.25 mm^(2) , when it is stretched by a force of 40 N and Y for steel is 2xx10^(11)N//m^(2) . The extension produced in a steel wire is

A steel wire of length 5 m and area of cross-section 4 mm^(2) is stretched by 2 mm by the application of a force. If young's modulus of steel is 2xx10^(11)N//m^(2), then the energy stored in the wire is

The Young's modulus of a wire of length 2m and area of cross section 1 mm^(2) is 2 xx 10^(11) N//m^(2) . The work done in increasing its length by 2mm is

A steel wire of length l and cross sectional area A is stretched by 1 cm under a given load. When the same load is applied to another steel wire of double its length and half of its cross section area, the amount of stretching (extension) is

A steel wire of length 4.5 m and cross-sectional area 3 xx 10^(-5) m^(2) stretches by the same amount as a copper wire of length 3.5 m and cross-sectional area of 1 xx 10^(-5) m^(2) under a given load. The ratio of the Young's modulus of steel to that of copper is

A steel wire of length 4.5m and cross-sectional area 3xx10^-5m^2 stretches by the same amount as a copper wire of length 3.5m and cross sectional area of 4xx10^-5m^2 under a given load. The ratio of the Young's modulus of steel to that of copper is

A steel wire of length 4.87 mm and cross-section 3.0 xx 10^(-5) m^(2) stretches by the same amout as a copper wire of length 3.5 m and cross -section 4.0 xx 10^(-5) m^(2) under a given load . White is the ratio of the Young's modulus of steel so that of copper ?

A copper wire of length 4.0 mm and area of cross-section 1.2 cm^(2) is stretched with a force of 4.8 xx 10^(3) N. If Young's modulus for copper is 1.2xx10^(11) N//m^(2) , the increases in the length of the wire will be

A nichrome wire of length 100 cm and area of cross-section 0.5 m m^(2) has a resistance of 2.2 Omega . The resistivity of nichrome is