What should be the state of capacitors after 5 minutes of disconnection?

The correct answer is that the capacitors should be fully discharged after 5 minutes of disconnection. Upon disconnection from the power source, capacitors begin to release their stored energy. The time it takes for a capacitor to discharge significantly depends on its capacitance and the resistance in the circuit; however, five minutes is generally sufficient for most capacitors to reach a state very close to being fully discharged under typical circumstances.

In practical applications, after disconnecting a capacitor, high-resistance paths (like air or insulation) usually prevent significant recharging from ambient conditions, leading to a full discharge. Depending on the specific application and the capacitor involved, there might still be trace voltages present, but these are typically negligible compared to the initial charge.

Other states, like being fully charged or partially discharged, do not apply in this scenario since the question specifies that the capacitors are disconnected and should naturally lose their stored charge over time due to the lack of a circuit allowing for energy input.