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Calculate the work done in stretching the wire of volume=12 m^3 and the values of stress and strain are 28 N/m^2 and 7.

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Calculate the work done in stretching the wire of volume=12 m^3 and the values of stress and strain are 28 N/m^2 and 7.

(a) 1176 J

(b) 1544 J

(c) 2542 J

(d) 8788 J

The question was posed to me during an online exam.

The above asked question is from Solid-State Devices in chapter Introduction to Solid-State Devices of Electric Drives

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The correct option is (a) 1176 J

The best I can explain: The work done in stretching a wire is .5×Stress×Strain×Volume. The value of the work done is .5×12×28×7=1176 J.

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