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Electrical Wiring and Short Circuit Quiz

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Electrical Wiring and Short Circuit Quiz

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Questions and Answers

What is the purpose of a fuse wire in an electrical circuit?

To maintain a constant voltage

To provide a path for electricity to flow

To shut down the electric supply in case of high current (correct)

To increase the electric potential

What happens when the 'live' and 'neutral' wires in a home electrical connection come in contact due to a fault?

Voltage increases to 440V

A large current flows through, producing heat (correct)

The electricity supply gets stronger

An electric shock is felt by the user

Why does an electrical fire occur when a short circuit happens?

Due to excessive light production

High current flowing through the wires generates heat (correct)

Because of an increase in cooling in the circuit

The potential difference between live and neutral wires reduces

What does the 'earth' wire in a home electrical connection do?

<p>Prevents electric shocks to users</p> Signup and view all the answers

How does a fuse wire act as a safety measure?

<p>By preventing high current flow in case of a fault</p> Signup and view all the answers

Study Notes

Electrical Circuit Safety Measures

A fuse wire is a safety device in an electrical circuit that melts or breaks when the current exceeds a certain limit, disconnecting the power supply and preventing damage or fire.

Short Circuit and Electrical Fire

When the 'live' and 'neutral' wires in a home electrical connection come in contact due to a fault, it creates a short circuit, allowing a large amount of current to flow and causing heat to build up.
This heat can ignite nearby flammable materials, leading to an electrical fire.

Function of the 'Earth' Wire

The 'earth' wire in a home electrical connection is a safety wire that provides a path for electricity to flow safely to the ground in case of a fault, preventing shock or electrocution.

Fuse Wire as a Safety Measure

The fuse wire acts as a safety measure by interrupting the power supply to a circuit when it becomes overloaded or faulty, preventing electrical fires, shock, or electrocution.
By breaking the circuit, the fuse wire protects appliances and devices from damage, and also protects people from electrical hazards.

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Description

Test your knowledge on electrical wiring, short circuits, and safety measures in case of a short circuit. Learn about the components of a home electrical connection and what happens when a short circuit occurs.