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Which, among the following is a unit for resistivity?

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Which, among the following is a unit for resistivity?

(a) ohm/metre

(b) ohm/metre^2

(c) ohm-metre

(d) ohm-metre^2

I got this question during a job interview.

My question is taken from Resistivity in section Simple DC Networks of Basic Electrical Engineering

1 Answer

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The correct answer is (c) ohm-metre

Easy explanation: Resistivity = Resistance* Length/area of cross section.

Unit of resistivity = ohm*(m^2)/m = ohm-m.

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