Question

Find out the resistivity values of conductors insulators and semiconductor

Answer 1

Answer:

CONDUCTORS :

Resistivity, electrical resistance of a conductor of unit cross-sectional area and unit length. A characteristic property of each material, resistivity is useful in comparing various materials on the basis of their ability to conduct electric currents. High resistivity designates poor conductors.

INSULATORS :

The resistivity of an exceedingly good electrical conductor, such as hard-drawn copper, at 20° C (68° F) is 1.77 × 10-8 ohm-metre, or 1.77 × 10-6 ohm-centimetre. At the other extreme, electrical insulators have resistivities in the range 1012 to 1020 ohm-metres.

SEMICONDUCTOR :

Semiconductors have bulk resistivity in the range of 10-4 ohm-cm (heavily doped) to 103 ohm-cm (undoped, or intrinsic).

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Answer 2

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Conductor => resistivity is very low and ranges from 10 ^ -9 to 10 ^ -4 (Ω-m)

Semiconductor => Resistivity is normally high and ranges between 10 ^ -3 to 10^ 3 (Ω-m)

Insulator => Resistivity is very high and ranges between 10 ^ 4 to 10 ^ 17 (Ω-m)

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