Question

The charge on $3\mu F$ capacitor shown in the figure is

• A. $20\mu C$
• B. $10\mu C$
• C. $6\mu C$
• D. $8\mu C$

Answer 1

Answer: (B)

Since all the capacitors are connected in series,
$\therefore$ equivalent capacitance is
$\frac{1}{C_{eq}}=\frac{1}{2}+\frac{1}{3}+\frac{1}{6}=1$
$\therefore C_{eq}=1\mu F$
Charge on each capacitor is same $\left(\because V=10V\right)$
$q=C_{eq}V=1\times 10$
$=10\mu C$