Question

In the figure, the equivalent capacitance between A and B is

• A. 3.75 $\mu F$
• B. 5.25 $\mu F$
• C. 6.5 $\mu F$
• D. 10.5 $\mu F$

Answer 1

Answer: (A)

The circuit can be simplified as shown.
It is a balanced Wheatstone bridge. $\Rightarrow$ $C_{AB}=\frac{5\times 3}{5+3}+\frac{5\times 3}{5+3}$ $\Rightarrow$ $C_{AB}=2\times \frac{15}{8}=\frac{30}{8}=3.75\mu F$