Question

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Mention two factor on which the resistance of the metallic wire depends .​

Answer 1

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Resistance of a material is given by , R=(ρ∗l)/a.

ρ depends upon the material and the temperature.

cross section So resistance is dependent on length, area of and temperature also.

Answer 2

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Resistance of the metallic wire is

a) directly proportional to its length ,

b) inversely proportional to its cross-section area .