Question

According to the old convention, the colour of neutral wire is:

• A. Red
• B. Green
• C. Black
• D. None of these

Answer 1

The correct option is C

Black

Explanation for correct option:

1. (c) Black
2. The neutral wire helps to carry the current back from the electrical devices to the plug completing an entire circuit and they consist of zero potential.
3. According to the international old colour convention, the colour of neutral wire is black.

Explanation for incorrect options:

1. (a) Red: As per old convention, the colour of the live wire was red.
2. (b) Green: As per old convention, the colour of the earth wire was green.

Hence, option (c) is the correct answer.