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A metal bar of length 100 mm is inserted between two rigid supports and its temperature is increased by 10C. If the coefficient of

A metal bar of length 100 mm is inserted between two rigid supports and its temperature is increased by 10C. If the coefficient of thermal expansion is 12 x 10-6 per C and the Young's modulus is 2x 105 MPa, the stress in the bar is CE 2007 b. 12 MPa c. 24 MPa d. 2400 MPa a. zero w

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