what do you mean by resistivity of of a substance that it units
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If a material has low resistivity, it means it offers less resistance to the electric current. ... In terms of definition, resistivityis defined as the resistance of a of a material of unit cross section and unitlength. We know that resistance can be written as: R = ρ L/A. Where ρ is a the resistivity of the substance.
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The amount of resistance offered by a substance is known as its resistivity.
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