Question

if the length of the wire is double and also it's cross section area is doubled . then what will be the resistance​

Answer 1

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The resistance is directly proportional to the length of the wire and inversely proportional to the area of the cross section.

If the length of the wire doubles, the resistance decreases by a factor of 1/2 .

I'f area of cross section doubles, the resistance increases by 2.

Finally, the resistance remains same☝☝☝

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