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Question:

A $2 \mu \mathrm{F}$ capacitor $\mathrm{C}_{1}$ is first charged to a potential difference of $10 \mathrm{~V}$ using a battery.Then the battery is removed and the capacitor is connected to an uncharged capacitor $\mathrm{C}_{2}$ of $8 \mu \mathrm{F}$. The charge in $\mathrm{C}_{2}$ on equilibrium condition is $\mu \mathrm{C}$. (Round off to the Nearest Integer)

Solution:

$20=\left(\mathrm{C}_{1}+\mathrm{C}_{2}\right) \mathrm{V} \Rightarrow \mathrm{V}=2$ volt.

$\mathrm{Q}_{2}=\mathrm{C}_{2} \mathrm{~V}=16 \mu \mathrm{C}$

$=16$

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