AP EAMCET202021 Sep 2020Evening ShiftPhysicsMechanical Properties of SolidsActual
The energy stored in a strained wire is given by
Options
- A( 1 2 ) load ( ) extension
- B( 1 2 ) extension ( ) stress
- C( 1 2 ) stress ( ) strain
- D( 1 2 ) strain ( ) load
Correct answer
A. ( 1 2 ) load ( ) extension
Step-by-step solution
Energy stored in a strained wire is equal to work done by the load to increase the length of wire. ( ) Energy, (U= ) Work done (= ) Average force (load) ( ) Extension in the wire (= ( 0+F 2 ) ) Extension (= F 2 ) Extension (= 1 2 ) Load ( ) Extension