Question

Effective resistance between point $A$ and $B$ for following network is-
(each branch of resistance is $R$)

• A. $\frac{5}{3}R$
• B. $\frac{3}{5}R$
• C. $R$
• D. $\frac{R}{2}$

Answer 1

The correct option is B $\frac{3}{5}R$

Circuit can be redrawn as:

$R_{eq}=\frac{\frac{3R}{2}\times R}{\frac{3R}{2}+R}$

$R_{eq}=\frac{3R}{5}$