Shows the strain-stress curve for a given material. What are (a) Young's modulus and (b) approximate yield strength for this material?

Draw the B-H curve for ferromagnetic materials.

The stress strain group for material A & B are shown in figure Which of the material has greater Young's modules?

A wire length L and cross sectional area A is made of material of Young's modulus Y . It is strectched by an amount X . The work done is

A steel wire of length 4.7 m and cross-sectional area 3.0 xx 10^- 5 m^2 stretches by the same amount as a copper wire of length 3.5 m and cross-sectional area of 4.0 xx 10^-5 m^2 under a given load. What is the ratio of the Young’s modulus of steel to that of copper?

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

The transverse section of a plant material shows the following anatomical features (a) the vascular bundless are conjoint, scattered and surrounded by sclerenchymatous bundle sheaths (b) phloem parenchyma is absent. What will you identify it as?

The stress strain group for material A & B are shown in figure Which is stronger material?

A wire of given material having length I and area of cross-section A has a resistance of 8Omega . What would be the resistance of another wire of the same material having length l/2 and area of cross-section 4A?