Question

Name the three types of wires used in household circuits.Out of these three which wire is used as a safety measure especially for thoe appliances that have metallic body.State the colour of insulation used for this wire.How this wire ensures the safety of the user?

Answer 1

Three types of wire used are :
1.live wire ( Red colour)
2. neutral wire(Black colour)
3.earth wire (Green colour)

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Earth wire is used as safety measures as;

if by chance, the live wire touches the metal case of the electric iron, which has been, then the current passes directly to the earth through the earth wire.It does not need our body to pass the current and, therefore comma we do not get an electric shock. Actually , a very heavy current flows supply.In this way, I think also says the electric appliance from damage due to excessive current and we also get saved from electric shock. first earthing electric appliance is used as a safety measure earth wire is of green colour.
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Answer 2

Answer:

Three types of wire used are :

1.live wire ( Red colour)

2. neutral wire(Black colour)

3.earth wire (Green colour)

Earth wire is used as safety measures as;

if by chance, the live wire touches the metal case of the electric iron, which has been, then the current passes directly to the earth through the earth wire.It does not need our body to pass the current and, therefore comma we do not get an electric shock. Actually , a very heavy current flows supply.In this way, I think also says the electric appliance from damage due to excessive current and we also get saved from electric shock. first earthing electric appliance is used as a safety measure earth wire is of green colour