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A copper and a steel wire of the same di...

A copper and a steel wire of the same diameter are connected end to end. A deforming force Fis applied to this composite wire which causes a total elongation of 1 cm. The two wires will have

A

the same stress

B

different stress

C

the same strain

D

different strain

Text Solution

Verified by Experts

The correct Answer is:
A, D
In stress `= F/A,` F is defoeming force and A is constant.
`therefore` Hence, stress is same so option (A) is correct.
`implies ` Strain `= F/Y`
Both wire having same deforming force but different Young.s modulus and hence two wires will have different strain so, option (D) is correct.
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