In the given figure the total charge stored in the combination of capacitors is $100\,\mu C$. The value of ' $x$ ' is $............$.
JEE MAIN 2023, Medium
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Charge on $C_1$ is $Q_1=2 \times 10=20\,\mu C \dots(i)$
Charge on $C _2$ is $Q _2= x \times 10=10\,x \mu C \dots(ii)$
Charge on $C _3$ is $Q _3=3 \times 10=30\,\mu C \dots(iii)$
Total charge $20+10 x +30=100$
$\Rightarrow x =5$
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