A Copper wire of length 2.2m and a steel wire of length 1.6m, both of diameter 3.0mm are connected end to end. When stretched by a load, the net elongation is found to be 0.70 mm. Obtain the load applied . Young's modulus of copper is `1.1 xx 10^(11)Nm^(-2)` and Young's modulus of steel is `2.0 xx 10^(11)Nm^(-2)`.

Explanation

To solve the problem step by step, we need to calculate the load applied to the copper and steel wires connected end to end.

### Step 1: Gather Given Data
- Length of copper wire, \( L_C = 2.2 \, \text{m} \)
- Length of steel wire, \( L_S = 1.6 \, \text{m} \)
- Diameter of both wires, \( d = 3.0 \, \text{mm} = 3.0 \times 10^{-3} \, \text{m} \)
- Radius of the wires, \( r = \frac{d}{2} = 1.5 \, \text{mm} = 1.5 \times 10^{-3} \, \text{m} \)
- Young's modulus for copper, \( Y_C = 1.1 \times 10^{11} \, \text{N/m}^2 \)
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