A wire of length l and resistance R is stretched so that its length is doubled and the area of cross – section is halved. How will

Question

A wire of length l and resistance R is stretched so that its length is doubled and the area of cross – section is halved. How will its :-

(1) Resistance Change (2)Resistivity Change​

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Ayla 5 months 2021-07-08T01:31:44+00:00 2 Answers 0 views 0

Answers ( )

    0
    2021-07-08T01:33:26+00:00

    you may find the attached solution

    0
    2021-07-08T01:33:43+00:00

    Answer:

    The resistance of a wire of length L and resistance R is given by : If a wire of length L and resistance R is stretched so that its length is doubled and the area of cross-section is halved. It means, L’ = 2L and A’ = A/2.

    Explanation:

    Op no.2.

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