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Roles of Earth and Neutral Wires in Circuits

Electricity and circuits • Domestic electricity and safety

Key concepts

What you'll likely be quizzed about

  • The neutral wire returns current back to the power supply after it has flowed through the electrical device.
  • By maintaining a complete circuit, it ensures the proper operation of appliances.
  • The neutral wire is typically colored blue in wiring systems, providing a visual distinction that is crucial for safe installation.

Flashcards

Test your knowledge with interactive flashcards

What is the function of the neutral wire?

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The neutral wire returns current to the power supply, completing the circuit.

Key notes

Important points to keep in mind

Neutral wire is blue, returns current to supply.

Earth wire is green/yellow, provides safety from electric shocks.

Ensure correct wiring to prevent electrical faults.

Regularly inspect wiring for safety.

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