Two wires of same length and radius are joined end to end and loaded. The Youngs modulii of the ... VIDEO
Two wires of same length and radius are joined end to end and loaded. The Youngs modulii of the materials of the two wires are \( Y_{1} \) and \( Y_{2} \). If the combination behaves as a single wire then its Youngs modulus is
(a) \( \frac{Y_{1} Y_{2}}{Y_{1}+Y_{2}} \)
(b) \( \frac{Y_{1}+Y_{2}}{2} \)
(c) \( \frac{2 Y_{1} Y_{2}}{Y_{1}+Y_{2}} \)
(d) \( \frac{Y_{1}+Y_{2}}{Y_{1} Y_{2}} \)
\( \mathrm{P} \)
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