Physics, asked by mehak1503, 1 year ago

beta!!!! friends....
plzzzz..... solve this question......

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mehak1503: thats heya not beta

Answers

Answered by iamalpha
1
HEYA!!

HERE'S YOUR ANSWER


When the wire is stretched,

1. its cross sectional area decreases.

2. its length increases.

Now, R is inversely proportional to the area of cross section.

So, The Resistance would become twice (×2).

Case : When area is halved, length becomes twice.

In this case, the overall resistance would remain same.


HOPE HELPED!!

HAPPY TO HELP :)

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