일반물리학 2 · Current and Resistance · Problem 49
일반물리학 2 — Current and Resistance: Problem 49
49 Two conductors are made of the same material and have the same length. Conductor A is a solid wire of radius 1.0 mm. Conductor B is a hollow tube of outside radius 2.2 mm and inside radius 1.0 mm. What is the resistance ratio $R_A/R_B$, measured between their ends?
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