Q.

Which of the following is correct about fuse wire?

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a

High resistance and low melting point

b

High resistance and high melting point

c

Low resistance and high melting point

d

Low resistance and low melting point

answer is C.

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Detailed Solution

Here, we'll talk about how the fuse wire functions specifically in short-circuit situations and when a lot of electricity is flowing through the circuit. The qualities required for a wire to be a fuse wire were then discussed.
A fuse wire is a safety wire that is linked in series with the live wire; in the event of an electrical fault or excessive current supply, the fuse wire melts and interrupts the electrical circuit. A fuse wire is a piece of wire made of a material having a low melting point; as soon as the temperature rises over its melting point, the material melts and breaks.

Tin, lead, or zinc are the primary components of fuse wires because the material should have a low melting point.
The major reason fuse wire is used in an electric circuit is to guard against overload or short circuit current. This implies that it shields the circuit from extremely high current flows that might harm it. The fuse wire is chosen so that when a lot of current flows through it, it burns and breaks the circuit. The material used to make fuse wire should have strong resistance and a low melting point for this function.

When a lot of current passes, the wire quickly warms up due to its high resistance. When the temperature surrounding the fuse wire reaches the material's melting point, it burns and safeguards the circuits.
As a result, the fuse wire will have a low melting point and high resistance.

Hence, the correct answer is option C.

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Which of the following is correct about fuse wire?