Question

How many wires are used in domestic electrical circuits? Write the names of each and their colours of insulation.

Hint:

The live wire carries current, the neutral wire completes the circuit, and the earth wire prevents electric shocks.

Answer 1

In a domestic electrical circuit, three main types of wires are used:
1. Live Wire: Carries current from the supply (Colour: Red or Brown).
2. Neutral Wire: Completes the circuit (Colour: Black or Blue).
3. Earth Wire: Provides safety by grounding excess current (Colour: Green or Yellow-Green).