Question
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
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
Parker unrated
Answer will be. 2a