Question

The equivalent resistance across points $A$ and $B$ is :

• A. $\frac{14}{9}\Omega$
• B. $\frac{14}{5}\Omega$
• C. $\frac{14}{3}\Omega$
• D. $\frac{14}{7}\Omega$

Answer 1

The correct option is C $\frac{14}{3}\Omega$


The given circuit can be simplified as shown :

Further, as :


Again, as :


Now,

$R_{AB}=\frac{14\times 7}{14+7}=\frac{14}{3}\Omega$

Hence, option $\left(C\right)$ is the correct answer.