A long wire hangs vertically with its upper end clam `A` torque of `8 Nm` applied to the free end twists it through`45^@`. The potential energy of the twisted wire is

A long wire hangs vertically with its upper end clamped. A torque of 6 N-m, applied to its free twists it through an angle of 30^(@) . The potential energy of the twisted wire is

A long wire hangs vertically with its upper end clamped, when a torque of 4.5 Nm is applied to free end through an angle of 10^(@) . Then work done by the twisted wire is,

One end of a wire is rigidly fixed and a force of 200 N is applied at its other end. The wire undergoes an elongation of 1mm. The potential energy stored in the wire is

A wire suspended vertically is stretched by a 20 kgf applied to its free end. The increase in length of the wire is 2 mm. The energy stored in the wire is (g=10ms^(-2)) :

A wire suspended vertically is stretched by a 20 kgf. applied to its free end. The increase in length of the wire is 2 mm. The energy stored in the wire is (g=10ms^(-2)) :

A wire suspended vertically from one of its ends is stretched by attaching a weight of 100 N to its lower end. What is the elastic potential energy stored in the wire, if the weight stretches the wire by 1.5 mm ?

A hanging wire of length L is elongated by an amount l with a load M attached to its free end. Prove that the elastic potential energy stored in the wire is 1/2Mgl .

The upper end of a wire 1 meter long and 2 mm radius is clamped. The lower end is twisted through an angle of 45^(@) . The angle of shear is

A uniform wire of radius r and length L hanging vertically and fixed at its upper ends, is attached to a weight at its lower end. If Young's modulus for the material of the wire is Y, the extension is