Three capacitors of capacitance $3\,\mu \,F,\,10\,\mu \,F\,$ and $15\,\mu \,F\,$ are connected in series to a voltage source of $100\,V$. The charge on $15\,\mu \,F\,$is.......$\mu C$
A$50$
B$100$
C$200$
D$280$
AIIMS 2000, Medium
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C$200$
c (c) $\frac{1}{{{C_{eq}}}} = \frac{1}{3} + \frac{1}{{10}} + \frac{1}{{15}} \Rightarrow {C_{eq}} = 2\,\mu F$
Charge on each capacitor
$Q = C_{eq} × V \Rightarrow 2 \times 100 = 200\,\mu C$
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