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  1. CIRCUIT Definition & Meaning - Merriam-Webster

    The meaning of CIRCUIT is a usually circular line encompassing an area. How to use circuit in a sentence.

  2. CIRCUIT | definition in the Cambridge English Dictionary

    circuit noun [C] (CIRCLE) something shaped like a circle, esp. a route, path, or sports track that starts and ends in the same place:

  3. What is a Circuit? - SparkFun Learn

    One of the first things you'll encounter when learning about electronics is the concept of a circuit. This tutorial will explain what a circuit is, as well as discuss voltage in further detail. A simple circuit, …

  4. What Is a Circuit? The Physics Behind Electronics

    May 26, 2025 · At its core, a circuit is a closed loop through which electric current can flow. This current—the flow of electric charge—needs a complete path to move. Imagine water flowing through …

  5. What Is a Circuit? - Computer Hope

    Sep 7, 2025 · What Is a Circuit? A circuit can refer to any of the following: 1. In electronics, a circuit is an electronic component consisting of a complete path: a voltage source and a load. 2. With a …

  6. Simple Circuits | Brilliant Math & Science Wiki

    A circuit is the path that an electric current travels on, and a simple circuit contains three components necessary to have a functioning electric circuit, namely, a source of voltage, a conductive path, and a …

  7. Electric circuit | Diagrams & Examples | Britannica

    Nov 11, 2025 · Electric circuits are classified in several ways. A direct-current circuit carries current that flows only in one direction. An alternating-current circuit carries current that pulsates back and forth …

  8. Circuit - definition of circuit by The Free Dictionary

    A regular or accustomed course from place to place; a round: a salesperson on the Detroit-Minneapolis-Chicago circuit; a popular speaker on the lecture circuit.

  9. What is a Circuit in Physics - California Learning Resource Network

    Jul 2, 2025 · A circuit, in its most fundamental definition within the realm of physics, is a closed loop that allows electric charge to flow from a source to a load and back.

  10. What is a Circuit? – Inspire Pearls

    Aug 25, 2025 · Simply put, a circuit is a complete pathway that allows electrical current to flow through various components, enabling devices to operate as intended. This article will provide a clear and …