Question

$\bf \fbox{Question:-}$

if a wire is stretched to end time of its original length find its new resistance.


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Answer 1

Answer:

Resistivity of wire remains constant. As the length of wire gets doubled, the cross-sectional area will become half of its previous value because volume of wire remains constant. Hence, we can see that the new resistance is four times the previous resistance

Answer 2

Reffered to the attachment

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