A copper wire of cross sectional asrea 0.01 cm is under a tension of 20 N. Find the decrease in the cross sectional area. Young modulus of copper `=1.1xx10^11Nm^-2` and Poisson ratio 0.32.

A copper wire of cross-section A is under a tension T .Its Young's modulus is Y and Poisson's ratio sigma .The decrease in cross-section of wire will be

A 4.0 m long copper wire of cross sectional area 1.2 cm^(2) is stretched by a force of 4.8 × 10^(3) N stress will be -

A steel wire having cross - sectional area 2 mm^ 2 is stretched by 10 N. Find the lateral strain produced in the wire. (Given : Y for steel = 2xx 10 ^ (11) N//m^ 2 Poisson 's ratio sigma = 0. 29 )

One end of a wire 2m long and 0.2 cm^2 in cross section is fixed in a ceilign and a load of 4.8 kg is attached to the free end. Find the extension of the wire. Young modulus of steel =2.0xx10^11Nm^-2 . Take g=10ms^-2 .

A 4m long copper wire of cross sectional are a 1.2cm^(2) is strechted by a force of 4.8xx10^(3)N . if Young's modulus for copper is Y = 1.2xx10^(11) M//m^(2) , the increases in length of wire and strain energy per unit volume are

What length of a copper wire of cross-sectional area 0.01 mm^(2) would be required to obtain a resistance of 1k Omega ? Resistivity of copper =1.7xx10^(-8) Omega m .

A uniform bar of length 2 m and cross-sectional area 50cm^(2) is subjected to a tensile load 100 N. If Young's modulus of material of bar is 2xx10^(7)N//m^(2) and poisson's ratio is 0.4, then determine the volumetric strain.

What length of a copper wire of cross-sectional area 0.01 mm^2 will be needed to prepare a resistance of 1 kOmega ? Resistivity of copper = 1.7 xx 10^(-8) Omega m .

A copper wire of cross sectional area 2.0 mm^(2) , resistivity =1.7xx10^(-8)Omegam , carries a current of 1 A. The electric field in the copper wire is

A steel wire of length 2.0 m/s is stretched through 2.0 mm. The cross sectional area of the wire is 4.0 mm^2. Calculate the elastic potential energy stored in the wire in the stretched condition. Young modulus of steel =2.0x10^11Nm^-2