If charge on left plane of the $5\ \mu F$ capacitor in the circuit segment shown in the figure is $-20\ \mu C$, the charge on the right plate of $3\ \mu F$ capacitor is.......$ \mu C$
A$+8.57$
B$-8.57$
C$+11.42$
D$-11.42$
Diffcult
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A$+8.57$
a Charge on right should be positive and
$\mathrm{q}_{1}+\mathrm{q}_{2}=20 \mu \mathrm{C}$ and $\frac{\mathrm{q}_{1}}{3}=\frac{\mathrm{q}_{2}}{4}$
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