Which component is used to regulate voltage in a circuit?

The component that is typically used to regulate voltage in a circuit is the diode. Diodes allow current to flow in one direction while blocking it in the opposite, and they can be part of voltage regulation circuits. In applications such as voltage clamping or rectifier circuits, diodes help maintain a steady voltage level by preventing the voltage from exceeding a certain threshold.

While capacitors, inductors, and resistors are all important components in circuits, they serve different primary functions. Capacitors store and release electrical energy, inductors resist changes in current, and resistors limit the flow of current. None of these components directly regulate voltage in the same way that diodes do. In voltage regulation, diodes often play a critical role in creating stable voltage outputs, particularly in power supplies and potential divider circuits.