A copper wire and a steel wire of same diameter and length are connected end to end and a force is applied which stretches their combined length by 1 cm. The two wires will have:
a)Same stress and strain
b)different stress and strain
c)different stress and same strain
d)same stress and different strain

Question

A copper wire and a steel wire of same diameter and length are connected end to end and a force is applied which stretches their combined length by 1 cm. The two wires will have:
a)Same stress and strain
b)different stress and strain
c)different stress and same strain
d)same stress and different strain

anonymous · Answer

same stress diff strain i think..

anonymous · Answer

force is same throughout the length so F/A is same ...due to diff value of Y for both the stain will be different..

ujjwal · Answer

Yeah, I had guessed exactly same but then i wasn't much sure. Thanks!

anonymous · Answer

:) ..i read something like this last year about two springs of diff k attached end to end and stretched..

ujjwal · Answer

Me too. And result was something like related to combination of capacitors.. I guess..

anonymous · Answer

yep..