Question

what will be the resistance of a wire of its lenght is doubled and radius made half?​

Answer 1

Answer:

please find the paragraph as ur ans.

Explanation:

If length is doubled and radius is halved the resistance would increase by 8 times. Since R = P* L/A: since resistivity is constant, Length becomes 2L and area becomes 1/4 th. Therefore it is 8 times.

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Answer 2

Answer:

hi dude!!

Explanation:

If length is doubled and radius is halved the resistance would increase by 8 times. Since R = P* L/A: since resistivity is constant, Length becomes 2L and area becomes 1/4 th. Therefore it is 8 times.

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Thanks !!!

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