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How to solve 

Asked by amitjena226 21st December 2017, 10:45 PM
Answered by Expert
Answer:
Energy stored due to elongation is given by

begin mathsize 12px style E n e r g y space s t o r e d space p e r space u n i t space v o l u m e space equals space 1 half cross times s t r e s s cross times s t r a i n space equals space 1 half cross times fraction numerator F o r c e over denominator A r e a end fraction cross times fraction numerator c h a n g e space i n space l e n g t h over denominator L e n g t h end fraction sin c e space v o l u m e space o f space w i r e space equals space A r e a cross times l e n g t h comma space t o t a l space e n e r g y space s t o r e d space equals space 1 half cross times f o r c e cross times c h a n g e space i n space l e n g t h space t o t a l space e n e r g y space s t o r e d space equals space 1 half cross times 10 cross times 10 cross times 1 cross times 10 to the power of negative 3 end exponent space equals space 0.05 space J space left parenthesis g space i s space a s s u m e d space a s space 10 space m divided by s squared right parenthesis  end style
Answered by Expert 22nd December 2017, 8:10 AM
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