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Q. In the circuit shown in the figure, the total charge in $750\, \mu C$ and the voltage across capacitor $C _{2}$ is $20\, V$. Then the charge on capacitor $C _{2}$ is :Physics Question Image

JEE MainJEE Main 2020Electrostatic Potential and Capacitance

Solution:

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$q _{3}=20 \times 8=160 \mu C$
$\therefore q _{2}=750-160=590 \mu C$