Question: Q. 4. A capacitor of unknown capacitance is connected across a battery of $V$ volt. A charge of $120 \mu \mathrm{C}$ is stored in it. When the potential across the capacitor is reduced by $40 \mathrm{~V}$, the charge stored in the capacitor becomes $40 \mu \mathrm{C}$. Calculate $V$ and the unknown capacitance. What would have been charge in the capacitor if the voltage is increased by $40 \mathrm{~V}$ ?
U [Delhi (Compt) III 2017]
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Solution:
Ans. Calculation of $\mathrm{V}$ and unknown capacitance 2 Calculation of charge when voltage is increased by $40 \mathrm{~V}$
1
Try yourself, Similar to Q.2, Short Answer Type II
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