Answer:
Step-by-step explanation:
When a switch in a circuit is thrown to connect a capacitor to a voltage source, the capacitor starts to charge up immediately. As the voltage across the capacitor increases, the charge on the capacitor also increases.
Initially, when the switch is thrown, the capacitor is uncharged, and therefore has zero voltage across it. As soon as the switch is closed, the voltage source (e.g. a battery) applies a voltage across the capacitor, causing it to start charging up.
Since the capacitor starts with zero charge, the charge on the capacitor immediately after the switch is thrown is also zero. However, as the capacitor charges up, the charge on it gradually increases until it reaches its maximum value, which is determined by the capacitance of the capacitor and the voltage applied across it. The time taken for the capacitor to reach its maximum charge depends on the values of the resistance and capacitance in the circuit.