COMEDK · Physics · 10. Mechanical Properties of Solids
A copper and a steel wire of same diameter are connected end to end. A deforming force \(F_1\) is applied to the wire which causes an elongation of \(1 \mathrm{~cm}\). The two wires will have
- A the same strain
- B different stress
- C different strain
- D None of these
Answer & Solution
Correct Answer
(C) different strain
Step-by-step Solution
Detailed explanation
Let the copper wire have Young's modulus \(Y_C\) and the steel wire have Young's modulus \(Y_S\). Both wires have the same diameter, so they have the same cross-sectional area \(A\). When connected end to end and subjected to a deforming force \(F_1\), the tension in both wires…
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