Question

Cable of microwave oven has three wires inside it which has insulation of different colours black green and red mention the significance of the three colours and potential difference between red and black one

Answer 1

the red wire is the live wire it has 220v(in case of india) potential , it carries current to the appliance.
the black wire is neutral wire it has 0v potential, it completes the circuit and
the green wire is earth wire which is a safety wire which rakes current to the metal body inside the earth.
takes the current away from the appliance.
the pd between back and red wire is 220v.

Answer 2

Answer:

Red colour if for live wire.

Black colour is for neutral wire.

Green colour for earth wire.

Potential difference between black and red wire is 220V.

Hope this will help you!!