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arijit

· started a discussion

· 1 Months ago

??? (Question: 317003.0 )

explanation needed

Question:

A bar of copper and steel form a composite system, which is heated to a temperature of 40ºC. The stress induced in the copper bar will be 40°C

Options:
A)

Tensile

B)

Compressive

C)

Shear

D)

Zero

Solution:

Ans: (b)

kartike arora

· commented

· 1 Months ago

the copper have more thermal expansion so it undergo compressive and steel has less thermal expansion therefore it undergoes tension
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