Question

behaviour of metal wire curve​

Answer 1

If the wire is unloaded at point E, the graph between stress and strain follows the reverse path EPO, then the point E is called elastic limit. The portion between O and E is called elastic region. ... Point Y on the curve is called yield point. The value of stress corresponding to yield point is called yield stress.

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Answer 2

The metalic wire shows the linear region with in certain limit.

Explanation:

Metal :

Metal is a good conductor of electrictioy.

Behaviour of meta wire curve :

A metallic wire of constant cross-section is hunged from a rigid support. When the load on the other end is slowly slowly increased. Then the length of the wire is increases.

When the force applied on metal wire by the load then the length stretches.

The stress and strain for metalic wire has linear region within certain limit.

According to hook's law,

The force is directly proportionqaal to the extension of the spring.

$F\propto -x$

Hence, The metalic wire shows the linear region with in certain limit.

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Topic : stress and strain curve

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