Three capacitors $1, 2$ and $4\,\mu F$ are connected in series to a $10\, volts$ source. The charge on the plates of middle capacitor is
Three capacitors $1, 2$ and $4\,\mu F$ are connected in series to a $10\, volts$ source. The charge on the plates of middle capacitor is
- A
$7\,\mu C$
- B
$\frac{{40}}{7}\,\mu C$
- C
$\frac{{20}}{7}\,\mu C$
- D
$\frac{{1}}{7}\,\mu C$
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- [KVPY 2018]
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