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Ananya Shree

Class 12th
Physics
2 years ago

Two conductors are made of the same material and have the same length. Conductor A is a solid wire of diameter 1 mm. Conductor B is a hollow tube of outer diameter 2 mm and inner diameter 1 mm. Find the ratio of resistance RA to RB.

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Muskan Anand

2 years ago

As we know, R=ρ×Al​ Then  RB​RA​​=AA​AB​​=1222−12​=3

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