On stretching a wire, he elastic energy per unit volume is ?
Jayant Kumar , 12 Years ago
Grade 11
Engineering Entrance Exams> On stretching a wire, he elastic energy p...
2 Answers
Arun
The work done by external applied force during stretching is stored as potential energy (U) in the wire and is called as strain energy in the wire. Dividing both sides above equation by AL, the volume of the wire. This is an expression for strain energy or potential energy per unit volume of stretched wire.
Vikas TU
In order to stretch a wire, certain work must be done against restoring force. This work done is stored in the form of potential energy (U) of the stretched wire. The energy stored per unit volume of the stretched wire is called its energy density. ... This is known as elastic fatigue
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