CBSE Class 10 Answered
RESISTER AND RESISTANCE
Asked by | 30 Sep, 2011, 02:00: PM
Expert Answer
Resistivity is a measure of how strongly a material opposes the flow of electric current. A low resistivity indicates a material that readily allows the movement of electric charges. The SI unit of electrical resistivity is ohm metre (?m). It is commonly represented by the Greek letter ? (rho).
Resistivity is a property of the material of the conductor. Materials with low resistivity are good conductors of electricity and materials with high resistivity are good insulators.
Answered by | 30 Sep, 2011, 02:42: PM
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