A uniform steel wire of length 4m and area of cross-section 3×10-6m2 is extended by 1mm by the application of a force. If the youngs modulus of steel is 2×1011 Nm-2 the energy stored in the wire is___________________?

Related Mcqs:

Which one of the following physical quantities does not have the dimensions of force per unit area ?

A. Stress B. Strain C. Youngs modulus D. Pressure...

A wire of length L is stretched by a length E when a force F is applied at one end. If the elastic limit is not exceeded the amount of energy stored in the wire is_________________?

A. FE B. (FE) C. FE2/L D. FE2...

If the density of atoms remain same along any direction in a crystal is called__________________?

A. Symmetry B. Homogeneity C. Isotropy D. Cleavage...

A wire obeys Hooks law is of length 11 when it is in equilibrium under a tension F1. Its length becomes 12 when the tension is increased to F2. The energy stored in the wire during this process is____________________?

A. (F1+F2) (121+122) B. (F1+F2) (122-112) C. (F1+F2) (12-11) D. (F1+F2) (12-11)...

Holes can exist in____________________?

A. Conductors B. Insulators C. Semi conductors D. All of the above...