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A steel wire and a copper wire of equal length and equal cross- sectional area are joined end to end and the combination is subjected to a tension. Find the ratio of copper/steel (a) the stresses developed . In the two wires, (b) the strains developed. (Y of steel `= 2xx10^(11) N//m^(2)` Y of copper `= 1.3xx10^(11) N//m^(2)`) |
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Answer» Correct Answer - `(a) 1 (b) (strai n i n copper wire )/(stra i n i n steel wire )=(20)/(13)` `(a) 1 (b) ("strain in copper wire")/("strain in steel wire")=(20)/(13)` |
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