Question

Write the name, (ii) working, and (iii) colours of the insulation of the wires used in the domestic electrical distribution.

Hint:

In domestic wiring, the {live wire} carries current, the {neutral wire} completes the circuit, and the {earth wire} provides safety.

Answer 1

(i) The main wires used in domestic electrical distribution are Live wire, Neutral wire, and Earth wire.
(ii) Working:
- The Live wire carries current from the main supply to the appliance.
- The Neutral wire provides the return path for the current.
- The Earth wire prevents electric shocks by directing leakage currents safely to the ground.
(iii) Colours of Insulation:
- Live wire: Red or Brown
- Neutral wire: Black or Blue
- Earth wire: Green or Yellow-green