A wire of length L and radius r has a resistance R. What is the resistance of a second wire made from the same material that has a length L/2 and a radius r/2? A) 4R B) 2R C) R D) R/4

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asked Jun 9, 2024 113k views

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A wire of length L and radius r has a resistance R. What is the resistance of a second wire made from the same material that has a length L/2 and a radius r/2?

A) 4R
B) 2R
C) R
D) R/4

Physics
high-school

LuVa asked

by LuVa

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1 Answer

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I think it’s B or 2R

Billy Coover answered Jun 14, 2024

by Billy Coover

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