Q29 of 330 Page 27

The resistivity of a certain material is 0.6 Ωm. The material is most likely to be:

The resistivity of semiconductor like silicon and germanium is in between those of conductor and insulator.

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If the resistance of a certain copper wire is 1Ω, then the resistance of a similar nichrome wire will be about:

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If the diameter of a resistance wire is halved, then its resistance becomes:

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When the area of cross-section of a conductor is doubled, its resistance becomes:

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The resistivity of copper metal depends on only one of the following factors. This factor is :