What is the equivalent resistance between \( A \) and \( B \) [BHU 1997; MP PET 2001; Similar MP...

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What is the equivalent resistance between \( A \) and \( B \)
[BHU 1997; MP PET 2001; Similar MP PET 1995, 2012;
Pb. PMT 2003]
(a) \( \frac{2}{3} R \)
(b) \( \frac{3}{2} R \)
(c) \( R / 2 \)
(d) \( 2 R \)
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