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A steel wire and a copper wire of equal ...

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)`)

Text Solution

Verified by Experts

(a) `sigma =F/A`
F and A both are same . Hence , the ratio is `1`.
(b) strain ` = (stress)/(Y) prop (1)/(Y)`
`:. ("strain")_("steel")/("strain")_("copper") = Y_("copper")/Y_("steel") = 13/20`
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