The wire which is negative and has a black insulation cover is called as
Neutral wire
Earth Wire
Live Wire
None of these
The neutral wire is a negative wire with a black insulation cover over it.
The wire which is connected to the earth and has a black insulation cover is called as:
What is the usual colours of the insulation of : (a) live wire, (b) neutral wire, and (c) earth wire ?
Which wire has a red insulation in an electrical wiring?