A wire has resistance 12 $Ω$ . It is bent in the form of a circle. The effective resistance between the two points on any diameter is equal to

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3 $Ω$

6 $Ω$

24 $Ω$

12 $Ω$

answer is C.

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Detailed Solution

When wire is bent in the form of a circle, then between two points in any diameter, it is equivalent to two resistances in parallel, $R_{eq} = \frac{12 / 2}{2} = 3 Ω$

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