What type of current can be stored in a capacitor?

A capacitor is an electrical component that is capable of storing electrical energy in an electric field. It can store both alternating current (AC) and direct current (DC) under different circumstances.

When it comes to DC, a capacitor will charge up to the voltage of the power source and then hold that charge until it is discharged. This makes it an effective way to store energy in circuits that use direct current.

For AC, the situation is a bit different but still valid. In an AC circuit, the capacitor charges and discharges as the current alternates direction, allowing it to store energy when the current is increasing and release energy when it decreases. This ability to handle AC makes capacitors essential in various applications, such as filtering out noise in power supplies and in timing circuits.

Hence, a capacitor can effectively store energy from both types of current, making the option stating that both AC and DC can be stored in a capacitor the correct choice.