Mathematics · Current Electricity
Two wires A and B are made of the same material and kept at the same temperature. Wire B has twice the length and twice the diameter of wire A. If the resistance of wire A is R, what is the resistance of wire B?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1R4
- 2R2✓
- 3R
- 42R
Correct answer
R2
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