Which statement about the live wire is true?

Which statement about the live wire is true?

• A. It is coated in brown plastic and carries the alternating potential difference pushing current in the circuit
• B. It is blue and carries current away from the component at 0 V
• C. It is green and yellow and connects to earth
• D. It is insulated with white plastic and carries no current

Answer: (A)

The live wire is the conductor that brings energy from the power supply to the appliance. It is normally brown and carries the alternating potential difference that pushes current around the circuit. This means current flows through it when the circuit is complete. The blue wire is neutral and completes the return path to the supply, the green-yellow wire is earth for safety, and a white-insulated wire isn’t a reliable indicator of being non-current-carrying. So describing the live wire as brown-coated and carrying the alternating potential difference is the correct explanation.

The live wire is the conductor that brings energy from the power supply to the appliance. It is normally brown and carries the alternating potential difference that pushes current around the circuit. This means current flows through it when the circuit is complete. The blue wire is neutral and completes the return path to the supply, the green-yellow wire is earth for safety, and a white-insulated wire isn’t a reliable indicator of being non-current-carrying. So describing the live wire as brown-coated and carrying the alternating potential difference is the correct explanation.