Question

Find the equivalent resistance between A and E (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 1

The correct option is A

$\frac{7}{12}R$

The figure can be redrawn as follows:





$R_{eq}=\frac{7R}{12}$