In the circuit shown, the value of each resistance is \( r \), then equivalent resistance of cir...

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In the circuit shown, the value of each resistance is \( r \), then equivalent resistance of circuit between points \( A \) and \( B \) will be
[Similar CBSE PMT 1999; RPET 1999]
(a) (4/3) \( r \)
(d) \( 8 r / 7 \)
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