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The equivalent resistance between A and B in the circuit shown will be

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The equivalent resistance between A and B in the circuit shown will be

(A)  5/4 r

(B)  6/5 r

(c)  7/6 r

(d)   8/7 r

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1 Answer

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Best answer

Correct option  (D)  8/7 r

Explanation:

In the circuit, by means of symmetry the point C is at zero potential. So the equivalent circuit can be drawn as 

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