A copper wire and a steel wire of the same diameter and length are joined end to end and a force is applied which stretches their combined length by 1 cm. Then the two wires will have:
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a
the same stress and strain
b
the same stress but different strains
c
the same strain but different stresses
d
different stresses and strains
answer is B.
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Detailed Solution
e = e1+e2as A1=A2Force on both the wires is sameFA1=FA2