The longitudinal extention of any elastic material is very small.In order to have an appericiable change ,the material must be in the form of

Ferro magnetic materials used in transformer must have

Is there any change in the state of material ?

Ferromagnetic materials used in a transformer must have

Most plant virus have genetic material in the form of

The poisson's ratio for a materia is 0.1. If longitudinal strain of a rod of this material is 1xx10^(-3) , then calculate the percentage change in the volume of the rod.

Define stress, strain and Young's modulus of an elastic material. Describe an experiment for measuring the Young's modulus of a material in the form of a wire.

The poisson's ratio of a material is 0.1. If the longitudinal strain of a rod of this material is 10^(-3) , then the percentage change in the volume of the rod will be