Define resistivity and its SI unit ?
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Electrical resistivity is a physical attriibute of a material that defines how much it opposes the flow of electric current through itself.
It is the electrical resistance per unit length and per unit of cross-sectional area of any material, at a given temperature.
A low value means th e material is a good conductor of electricity, while a high value indicates that the material is a bad conductor of electricity.
The SI unit of electrical resistivity is Seimens Per Meter.
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Answer:
resistance of a conductor of unit length and having unit cross-section area. it's SI unit is ohm m
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