Question

List the factors on which the resistivity of a conductor depends on.

Answer 1

Answer:

The resistance of the conductor depends on the following factors:

The resistance of the conductor depends on the following factors:The temperature of the conductor.

The resistance of the conductor depends on the following factors:The temperature of the conductor.The cross-sectional area of the conductor.

The resistance of the conductor depends on the following factors:The temperature of the conductor.The cross-sectional area of the conductor.Length of the conductor.

The resistance of the conductor depends on the following factors:The temperature of the conductor.The cross-sectional area of the conductor.Length of the conductor.Nature of the material of the conductor.

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Answer 2

Correct Question :-

List the factors on which resistance of a conductor depends on.

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➤ The electrical resistance of a conductor depends on the following factors :-

☛ Length of the conductor :- The resistance of a conductor directly proportional to it's length.

• when the length of a wire is doubled ,it's resistance also get doubled.

• When the length of wire is halved then it's resistance also gets halved.

☛ Area of Cross section of conductor:- The resistance of conductor is inversely proportional to it's area of cross section.

• when the area of cross section of wire is doubled , it's resistance gets halved.

• when the area of cross section of wire is halved then it's resistance will get doubled.

☛ Nature of material of conductor :- The electrical resistance of a conductor depends on the nature of material of which it is made.

☛ Temperature of the conductor :- The resistance of all pure metals increases on raising the temperature and decreasing on lowering the temperature.

• The resistance of alloys like manganin,constantan and nichrome is almost unaffected by temperature.