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A ground (earth) wire is needed in not just a light circuit but in all circuits that are now installed.

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15y ago

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What materials are needed to light a bulb in a circuit?

batteries, wire, connectors, and light bulbs


When you connect earth wire in ceiling light does not work when connecting earth from light direct to earth wire coming from ceiling trips out when take earth wire out light works?

By earth wire I am assuming you mean the bare wire and that a black and white wire are connected to the light. If when you connect the earth wire and breaker trips then there is a short between black and earth. It could be a bad ground connection, an internal short in the light fixture where black wire "hot" is connected to metal on the fixture through a nick in wire.


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What is the purpose of the common wire in a light switch circuit?

The purpose of the common wire in a light switch circuit is to provide a return path for the electrical current to complete the circuit and allow the light to turn on or off when the switch is toggled.


In electrical circuits what wire protects the operator?

Earth wire is meant to protect the user in case there is earth fault in the device or circuit. Only earth wire alone is not sufficient. It needs to be provided with suitable circuit breaker that breaks the circuit automatically.


What size wire and breaker is needed via 20ft length for a Westonhouse 1500w floodlight?

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What is the appropriate size of copper wire needed for a 60 amp electrical circuit?

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Why is your earth wire is glowing on the live circuit?

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Yes, a loose neutral wire can effect the operation of Earth Leakage Circuit Breaker.


What are the uses of black wire?

The black wire is not really needed in a circuit because it has a negative voltage