1.

Find the equivalent resistance between A and B (resistance of each resistor is R.)

A. \[\frac{7}{12}R\]
B. \[\frac{7}{13}R\]
C. \[\frac{7}{15}R\]
D. \[\frac{8}{13}R\]
Answer» B. \[\frac{7}{13}R\]


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