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Two conductors are made of the same material and have the same length. Conductor A is a solid wire of diameter 1 m. Conductor B is a hollow tube of inside diameter 1 m and outside diameter 2 m. The ratio of their resistance, RA/RB, is: 1 2 2 3 4

Two conductors are made of the same material and have the same length. Conductor A is a solid wire of diameter 1 m. Conductor B is a hollow tube of inside diameter 1 m and outside diameter 2 m. The ratio of their resistance, RA/RB, is: 1 2 2 3 4

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Two conductors are made of the same material and have the same length. Conductor A is a solid wire of diameter 1 m . Conductor B is a hollow tube of inside diameter 1 m and outside diameter 2 m . The ratio of their resistance, R A / R B , is: 1 2 2 3 4

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