Exam 2 Solutions - Department of Physics

Mar 05, 2008 · Exam 2 Solutions 1. Two cylindrical resistors are made of the same material and have the same resistance. The resistors, R1 and R2, have different radii, r1 and r2, and different lengths, L1 and L2. Which of the following relative values for radii and lengths would result in equal resistances? (1) 2r1 = r2 and 4L1 = L2 (2) 2r1 = r2 and L1 = 2L2

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