When a copper wire of length 2.2 m and a steel wire of length 1.6...

When a copper wire of length 2.2 m and a steel wire of length 1.6 m, both of diameter 3.0 mm, are connected end to end and stretched by a load, the net elongation is found to be 0.70 mm. What is the load applied?

Options

A3.6× ${{10}^{2}}~N$
B1.8× ${{10}^{2}}~N$
C1.8× ${{10}^{3}}~N$
D3.6× ${{10}^{3}}~N$

Correct answer

B. 1.8× ${{10}^{2}}~N$

Step-by-step solution

Correct Option is : (B)
1.8×

{{10}^{2}}~N

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