Physics, asked by majeedmajda630, 9 months ago

51. A certain wire has a resistance R. The resistance of
another wire, identical with the first except for
having twice its diameter, is

Answers

Answered by dharmveersingh0109

4

Answer:

Explanation: Resistance of first wire = R. Resistance is inversely proportional to the square of area of wire so, now R/R'= (2r)^2/r^2. R'= R/4

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