Question

write a short note on fuse​

Answer 1

Answer:

A Fuse or an Electric Fuse is an Electrical / Electronic device that protects the circuit from different electrical faults like over current and overload. Fuses can be considered as a sacrificial element in the circuit as they act as a weak link in the entire circuit..

This is because a fuse sacrifice itself reliably .opens the circuit when there is an excessive current in the circuit or the circuit is under over load and if there is any short circuit.

The principal of fuse based on the heating effect of the electric current . A simple fuse consists of a small conductive material with low resistance and it is placed in series with the circuit.

Explanation:

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Answer 2

Answer:

Electric fuse/ fuse is a device which is used to limit the current in an electric circuit. The fuse safeguards the circuit and the electrical appliances from being damaged. The fuse wire is generally an alloy of lead and tin. It has a low melting point and breaks the circuit if the current exceeds a safe value. The thickness and length of the fuse wire depends on the maximum current allowed through the circuit. It is connected in series in the beginning of the electric circuits. When the circuit current exceeds a specified value due to voltage fluctuations or short-circuiting, the fuse wire gets heated and melts. Thus it breaks the connection as shown in the figure and no current flows. This prevents damage to the appliance.

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