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Three wires are made of copper having circular cross sections. Wire 1 has a length l and radius r. Wire 2 has a length l and radius 2r. Wire 3 has a length 2l and radius 3r. Which wire has the smallest resistance?

User Iamjoshua
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1 Answer

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Step-by-step explanation:

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Three wires are made of copper having circular cross sections. Wire 1 has a length-example-1
User Cms
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