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Define the term elrctrical resistivity of …

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Define the term elrctrical resistivity of material

Posted by Sabita Sha 5 years, 8 months ago

CBSE > Class 10 > Science

2 answers

Yogita Ingle 5 years, 8 months ago

Electrical resistivity is the reciprocal of electrical conductivity. It is the measure of the ability of a material to oppose the flow of current.

Metals are good conductors of electricity. Hence, they have low resistivity.
The insulators like rubber, glass, graphite, plastics, etc. have very high resistivity when compared to the metallic conductors.
The third type is the semiconductor which comes in between the conductors and insulators. Their resistivity decreases with the increase in temperature and is also affected by the presence of impurities in them.

Stranger?♋ Things 5 years, 8 months ago

Electrical resistivity, represented by the Greek letter ρ (rho), is a measure of how strongly a material opposes the flow of electric current.

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