What isclosed circuit

A closed circuit refers to an electrical circuit where there is a continuous path for electric current to flow from the power source to the load without interruption. In simple terms, a closed circuit is like a complete circle where electricity flows from the source, through the conductor and to the load, returning to the source to complete the loop. The concept of closed circuits is important because electrical devices require a closed circuit to work.

Components and Example of a Closed Circuit

The components of a closed circuit are a power source like a battery, a connecting wire or conductor and an electric load. An example of a closed circuit would be an LED light connected to a battery. When the switch is closed, the current flowing from the battery is uninterrupted, and the LED lights up. However, if any of these three components are interrupted or disconnected, the circuit becomes an open circuit. In an open circuit, there is a break in the path, and the current does not flow.

Why is Understanding Closed Circuit Important?

Understanding closed circuits is significant in troubleshooting and maintaining electrical equipment. Electrical devices require specific wiring and functioning circuits to operate correctly. If there is a break in the circuit, it can cause the device to malfunction. Therefore, for a device to function correctly, there must be a closed circuit between the power source and the load, enabling a smooth flow of electricity.

Frequently Asked Question (FAQ)

What is the difference between a Closed Circuit and an Open Circuit?

In a closed circuit, electricity can flow from the source through the load without interruption, while in an open circuit, there is an interruption or break in the path, and no current can flow.

Can an open circuit cause damage to electrical equipment?

Yes, an open circuit can cause damage to electrical equipment since the device is not receiving the power required to function as designed.


A closed circuit is a fundamental concept in electrical engineering, and it is essential to ensure that electrical devices operate correctly. Without a closed circuit, electricity cannot flow, and devices do not function correctly or may even cause damage. Understanding the concept of closed circuits is important in troubleshooting and maintaining electrical equipment.

- Advertisement -
Latest Definition's

ϟ Advertisement

More Definitions'