Define resistivity & write the range of resistivity of conductors
& insulators.
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Explanation:
Resistivity, commonly symbolized by the Greek letter rho, ρ, is quantitatively equal to the resistance R of a specimen such as a wire, multiplied by its cross-sectional area A, and divided by its length l; ρ = RA/l. ... At the other extreme, electrical insulators have resistivities in the range 1012 to 1020 ohm-metres.
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Answer:
Resistivity, commonly symbolized by the Greek letter rho, ρ, is quantitatively equal to the resistance R of a specimen such as a wire, multiplied by its cross-sectional area A, and divided by its length l; ρ = RA/l. ... At the other extreme, electrical insulators have resistivities in the range 1012 to 1020 ohm-metres.
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