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Discussion :: Current Electricity

  1. The resistance of a copper wire 200 m long is 21 ω. If its thickness (diameter) is 0.44 mm, its specific resistance is around

    2. A.

     1.2 x 10-8 ω-m
    B.

     1.4 x 10-8 ω-m
    C.

     1.6 x 10-8 ω-m
    D.

     1.8 x 10-8 ω-m

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    Answer : Option C

    Explanation :

    Explanation Not Provided

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