Asked by rituparna
A cylindrical conductor of length L and uniform area of cross section A has resistance R. What will be the area of cross section of another conductor of length 2L and resistance R of the same material?
Answers
Answered by
Steve
since R varies as L/A, changing L to 2L requires that we also change A to 2A, since
L/A = 2L/2A
L/A = 2L/2A
Answered by
Parker unrated
Answer will be. 2a
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