Direct Current (DC) circuits are electrical circuits where the flow of electric charge is unidirectional, meaning it moves in a single direction. This type of current is commonly produced by sources like batteries and solar cells. In a DC circuit, the voltage remains constant over time, allowing for stable operation of devices such as lights and electronic gadgets. In a DC circuit, components like resistors, capacitors, and inductors can be connected in various configurations. The behavior of these components is governed by Ohm's Law, which states that the current through a conductor between two points is directly proportional to the voltage across the two points. Understanding DC circuits is essential for designing and troubleshooting electronic systems.