In the diagram resistance between any two junctions is R. Equivalent resistance across terminals....

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In the diagram resistance between any two junctions is R. Equivalent resistance across
\( \mathrm{P} \)
terminals \( \mathrm{A} \) and \( \mathrm{B} \) is
(A) \( \frac{11 \mathrm{R}}{7} \)
(B) \( \frac{18 \mathrm{R}}{11} \)
(C) \( \frac{7 R}{11} \)
(D) \( \frac{11 \mathrm{R}}{18} \)


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