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A wire of resistance 8Ω is bent in the form of a closed circle. What is the effective resistance between the two points A and B, at the ends of any diameter of the circle ?
  • a)
  • b)
  • c)
  • d)
Correct answer is option 'C'. Can you explain this answer?
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A wire of resistance 8Ω is bent in the form of a closed circle. ...
When a wire of 8Ω resistance is bent in the form of a closed circle, resistance of each half (semicircular) part is 8/2 Ω = 4Ω. 
As these two parts are connected in parallel across points A and B, hence effective resistance will be 2Ω. 
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A wire of resistance 8Ω is bent in the form of a closed circle. ...
When a wire of 8Ω resistance is bent in the form of a closed circle, resistance of each half (semicircular) part is 8/2 Ω = 4Ω. 
As these two parts are connected in parallel across points A and B, hence effective resistance will be 2Ω. 
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A wire of resistance 8Ω is bent in the form of a closed circle. ...
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A wire of resistance 8Ω is bent in the form of a closed circle. What is the effective resistance between the two points A and B, at the ends of any diameter of the circle ?a)8Ωb)4Ωc)2Ωd)1ΩCorrect answer is option 'C'. Can you explain this answer?
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