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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 …

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 …
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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

asked
User LuVa
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1 Answer

4 votes
I think it’s B or 2R
answered
User Billy Coover
by
8.4k points
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