Question

describe the working of an electric fuse ​

Answer 1

Answer:

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Explanation:

The fuses work on the principle of the heating effect of the current. It’s made up of thin strip or strand of metallic wire with noncombustible material. This is connected between the ends of the terminals. Fuse is always connected in series with the electrical circuit.

When the excessive current or heat is generated due to heavy current flows in the circuit, the fuse melts down due to the low melting point of the element and it opens the circuit. The excessive flow may lead to the breakdown of wire and stops the flow of current. The fuse can be replaced or changed with the new one with suitable ratings. The fuse can be made up of the element like zinc, copper, silver &aluminum. They also act as a circuit breaker which is used to break the circuit when the sudden fault occurs in the circuit. This is not only a protector but it is also used as a safety measure to prevent humans from hazards. So, this is how the fuse operates. Here is the figure is shown fuse operation, fuse barrel(container), fuse link.

Answer 2

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here is your answer

The fuse breaks the circuit if a fault in an appliance causes too much current to flow. The fuse contains a piece of wire that melts easily. ... If the current going through the fuse is too great, the wire heats up until it melts and breaks the circuit.