Question

Find equivalent capacitance across $AB$ (all capacitances in $\mu F$ ).

• A. $\frac{20}{3}\mu F$
• B. $9\mu F$
• C. $48\mu F$
• D. None

Answer 1

Answer: (B)

Circuit can be redrawn as:

Now $V_x=V_y$, Since $\frac{30}{6}=\frac{10}{2}$
$C_{eq}=\left(\frac{30\times 10}{30+10}\right)+\left(\frac{6\times 2}{6+2}\right)$
$=9\mu F$