Definition

1. Noun:
   • A complete, closed path through which an electric current can flow: An electrical circuit is a system of interconnected electrical components (such as wires, resistors, capacitors, and power sources) that forms a continuous loop, allowing the movement of electric charge.
   • An electrical device providing a conductive path for current: It refers to the physical arrangement or network of conductors and components designed to carry electricity for a specific purpose, such as powering a device or processing a signal.

Usage Examples

• Noun:
  • The engineer designed a new electrical circuit for the amplifier.
  • A short circuit occurs when an electrical circuit is accidentally completed with very low resistance.
  • Before repairing the appliance, always disconnect it from the electrical circuit.

Advanced Usage

• "To complete a circuit": To connect all parts so that current can flow uninterrupted.
  • The switch completes the circuit, allowing electricity to power the light bulb.
• "Circuit analysis": The process of calculating the voltages, currents, and other properties within an electrical circuit.
  • Basic circuit analysis is a fundamental skill for electrical engineering students.

Variants and Related Words

• Circuit (noun): A common shortened form of "electrical circuit."
  • The integrated circuit contains millions of transistors.
• Circuitry (noun): The detailed components and connections of a circuit or system of circuits.
  • The phone's internal circuitry is very complex.
• Short circuit (noun): A fault where current flows along an unintended path with little to no resistance.
• Open circuit (noun): An incomplete circuit where the path is broken, preventing current flow.
• Printed circuit board (PCB) (noun): A board used to mechanically support and electrically connect electronic components.

Synonyms

• Network: A system of interconnected elements.
• Loop: A closed path or circuit.

Related Phrases

• "To break the circuit": To interrupt the path of current flow, often for safety.
  • The fuse breaks the circuit if the current is too high.
• "Live circuit": A circuit that is connected to a power source and has voltage present.
  • Warning: Do not touch the wires; it's a live circuit.

Noun

1. an electrical device that provides a path for electrical current to flow