Physics, asked by reenagrg669, 5 hours ago

A wire of length l and resistance R is stretched so that its length is doubled and the area of cross - section is halved. How will its :-

(1) Resistance Change (2)Resistivity Change​

Answers

Answered by dhanashrishende
2

Answer:

The resistance of a wire of length L and resistance R is given by : If a wire of length L and resistance R is stretched so that its length is doubled and the area of cross-section is halved. It means, L' = 2L and A' = A/2.

Explanation:

Op no.2.

Answered by raghvendrark500
1

you may find the attached solution

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