Question

5 condensers are connected as shown in the figure. The effective capacitance between ‘A’ and ‘B’ is :

• A. $\frac{25}{32}\mu F$
• B. $\frac{32}{25}\mu F$
• C. $\frac{32}{9}\mu F$
• D. $\frac{9}{32}\mu F$

Answer 1

Answer: (B)

$\frac{32}{25}\mu F$

we known
capacitors in series $\frac{1}{C_s}=\frac{1}{c_1}+\frac{1}{c_2}+$ - - -
capacitor in parallel $C_p=c_1+c_2+$ - - -
$\frac{1}{C_s}=\frac{1}{2}+\frac{9}{32}$
$C_s=\frac{32}{25}\mu F$