Question on: JAMB Physics - 2019
The point at which the molecules of a loaded wire begin to slide across each other resulting in a rapid increase in extension is
A
yield point
B
proportionality point
C
deformation point
D
elastic point
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Correct Option: A
the elastic limit of a material is the greatest stress that can be applied to it without causing plastic (permanent) deformation. This represents a particular load beyond which stretched material does not completely recover its original shape & size.
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