Calculate the capacity of unknown capacitance is connected acrosss a battery of V volts. The charge stored in it is `360 muC`. When potential across the capacitor is reduced by 120V, the charge stored in it becomes `120 muC`.
Calculate (i) the potential V and unknown capacitance C. (ii) What will be the charge stored in the capacitor. If the voltage applied had increased by 120 V

Explanation

To solve the problem, we will follow these steps:

### Step 1: Establish the relationship between charge, capacitance, and voltage
The charge \( Q \) stored in a capacitor is given by the formula:
\[ Q = C \cdot V \]
where \( C \) is the capacitance and \( V \) is the voltage across the capacitor.
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