Question

If a wire is stretched to double its
length, what will its new
resistivity be ?
Give reason​

Answer 1

Answer:

Higher the resistivity, lesser will be its conducting nature. Resistivity does not depend on the length of the conductor. Hence, doubling the length will not change its resistivity.

Answer 2

Answer:

if a wire is stretched to double its length the resistivity will remain constant. Because resistivity does not depend on shape and size of the material, it depends on the nature of a substance and temperature. The resistivity of a substance is its characteristic property.

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