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What happens if a live wire touches metal?

What happens if a live wire touches metal?

If the live wire touches the metal casing accidentally, current will flow through the casing and the user touching the casing will get an electrical shock. The earth wire has a resistance much lower than the human body. This will allow the current to flow through it to the ground instead of through the user’s body.

Can a live wire electrocute you?

If you are in contact with a live wire or any live component of an energized electrical device—and also in contact with any grounded object—you will receive a shock. You can even receive a shock when you are not in contact with an electrical ground. Contact with both live wires of a 240-volt cable will deliver a shock.

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What is the danger of touching a live wire in a circuit?

The exposed live wire can cause severe electric shock to the user if it is touched. This can lead to serious injury or even death. Plugging too many power cables into a socket can result in the socket being overloaded, overheating, and a fire starting as an unusually large current flows through the conducting wires.

What happens if you put live wire in neutral?

In house wiring this would be called a direct short (circuit) and would blow the fuse or circuit breaker. If the live wire enters directly into the neutral wire is a short circuit condition.In case of wire burns or normal wire, then circuit breakage and all things become normal except this conductor or wire.

What happens if live wire is connected to earth?

As the wire is made of copper, the earth wire provides a low resistance path to the ground. In the event of a fault, the large live current passing through the case earth wire will follow this path to the ground instead of passing through a person, and will blow the fuse rendering the appliance safe.

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What happens when an appliance becomes live?

If there is a fault that causes the casing of the device to become live, a large current will flow through the live wire and low-resistance earth wire. This high current will cause the fuse to melt. Once the fuse has melted, the circuit is broken and no more current flows through the device.

What happens if live and earth wires touch?

If you touch it, you may complete a circuit between the live wire and the earth (because you’ll be standing on the floor), so you get a shock. The flow of charge (current) in a circuit can travel in one direction around the circuit only. This is due to a direct supply of potential difference, also known as dc.