What is resistivity?
GeneralClass 12AllAnswered 27 Mar 2026
Answer
Resistivity is a fundamental property of materials that measures how strongly they resist the flow of electric current. It indicates how difficult it is for electrons to move through a material. Unlike resistance, which depends on the size and shape of an object, resistivity is an intrinsic property that remains constant for a given material at a specific temperature. Materials with low resistivity (like copper and silver) are good conductors, while those with high resistivity (like rubber and glass) are good insulators.
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