Physics, asked by Achievements4726, 8 months ago

A copper wire of length L and radius r has resistance R. The resistance of another copper wire of twice the length and half the radius will be

Answers

Answered by rituritikakumari987
2

Answer:

The resistance will be 8times the actual resistance

Explanation:

The relationship between resistance(R) length(l) and radius(r) is

R is directly proportional to l and inversely proportional to square of the radius

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