Question

Effective capacitance between A & B is

• A. $\frac{10}{3}nF$
• B. $\frac{1}{3}nF$
• C. $\frac{4}{3}nF$
• D. $\frac{2}{3}nF$

Answer 1

The correct option is A $\frac{10}{3}nF$



$\left(\left\{12\right(series\left)6\right\}\right)\Rightarrow \frac{12\times 6}{12+6}=4$
$\left(\left\{12\right(parallel\left)6\right\}\right)\Rightarrow 3+3=6$


$4\left(parallel\right)4\Rightarrow 4+4=8$
$2\left(series\right)8=\frac{2\times 8}{2+8}=1.6$


$C_{AB}=5\left(series\right)10$
$=\frac{5\times 10}{15}=\frac{50}{18}=\frac{10}{3}$