Question

Yield point phenomenon is not in ductile materials?

Answer 1

During tensile deformation materials initially deform elastically and the yield point marks the onset of plastic deformation. For most materials the transition from elastic to plastic deformation is gradual and hence do not exhibit a sharp transition point.
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Answer 2

Electricity is useful for Many things that occur in the physical world are known as janhana( janahana means people) with the electric charge The electric charge was released in the light of the sky power of lightning electricity used as a source of energy, etc. Before the development of the Maxwell's equation, it is considered to be the first thing in the form of a physical phenomenon of energy.

Electricity is useful for Many things that occur in the physical world are known as janhana( janahana means people) with the electric charge The electric charge was released in the light of the sky power of lightning electricity used as a source of energy, etc. Before the development of the Maxwell's equation, it is considered to be the first thing in the form of a physical phenomenon of energy.:):)