A wire of length 4m is made of a material of young's modulus `20times10^(11)Pa` .When the wire is extended by 1mm the stress developed in the wire is

A wire of length L and cross-sectional area A is made of a material of Young's modulus Y. IF the wire is stretched by an amount x, the workdone is

A uniform rectangular block of mass 50 kg is hung horizontally with the help of three wires A, B and C each of length and area of 2 m and 10 mm^2 respectively as shown in the figure. The central wire is passing through the centre of gravity and is made of a material of Young's modulus 7.5 xx 10^10 Nm^(-2) and the other two wires A and C symmetrically placed on either side of the wire B are of Young's modulus 10^11 Nm^(-2) . The tension in the wires A and B will be in the ratio of

A load of 5kg hangs from one end of a vertical wire of length 1 m and of radius 1 mm. IF young's modulus of the material of the wire is 2 times 10^11 N.m^-2 , find the length of the wire when no load is acting on it.

An iron wire of length 4 m and diameter 2 mm is loaded with a weight of 8 kg. if the Young's modulus Y for iron is 2xx10^(11)N//m^(2) then the increase in the length of the wire is

When a load of 10 kg is hung from one end of a wire of length 5 m, the wire elongates by 5 mm. IF the young modulus for the material of the wire is 9.8 times 10^10 N.m^-2 , then find the area of cross section of the wire. [g=9.8 m.s^-2 ]

A stell wire of length 4 m ,is stretched through 2 mm ,.The corss - sectional area of the wire is 2.0 mm^2 .If young's modulus of steel si 2.0 xx 10 ^11 N//^2 find The elastic potential energy stored in the wire.

An iron wire of length 4m and diameter 2mm is loaded with a weight of 8kg. If the Young's modulus 'Y' for iron is 2xx10^11 Nm^(-2) then the increase in length of the wire is

If S is the stress and Y is young's modulus of the material of a wire , then the energy stored in the wire per unit volume is