A charged capacitor connected to an uncharged capacitor is a circuit arrangement where two capacitors are connected together in a series or parallel configuration. One capacitor has been previously charged with electric charge, while the other capacitor has no charge.
When a charged capacitor is connected to an uncharged capacitor, the electric charge from the charged capacitor will flow into the uncharged capacitor until both capacitors have the same voltage. This process is known as charge sharing.
The final voltage of the charged and uncharged capacitors will be the same, as charge sharing will occur until both capacitors have equal voltage. This voltage will be determined by the capacitance values of the two capacitors and the initial charge on the charged capacitor.
No, the total energy stored in the two capacitors after they are connected will be the same as the energy stored in the single charged capacitor before they were connected. However, the energy will be distributed between the two capacitors based on their capacitance values.
The time constant for a charged capacitor connected to an uncharged capacitor is the time it takes for the voltage on the capacitors to reach 63.2% of the final voltage during charge sharing. It is calculated by multiplying the capacitance of the two capacitors in the circuit.