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28 March, 03:14

Consider a wire that has resistance r, length l and the cross-sectional area

a. the correct expression for the resistivity of that wire is:

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  1. 28 March, 05:14
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    Rho = R * A/l

    rho is the resistivity in ohm meters.

    R is the resistance in ohms

    A is the cross sectional area in meter^2

    l is in meters.
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