6.
Which of the following is not a type of fuse?
(b) Semi enclosed rewirable
(a) HRC
(d) None of these
(c) Ceramic
Answers
hey dear ur option is (d) None of these.
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Answer: correct option is (d) that is none of these
Explanation:
A general fuse consists of a low-resistance metal wire enclosed in a non-combustible material. It is used to connect and install in series with a circuit and equipment that needs to be protected against short circuits and overcurrent, otherwise, the electrical appliance may be damaged in the absence of a fuse and circuit breaker because they are unable to handle the excessive current according to their rated limits
There are various types of fuse like semi-enclosed rewirable, HRC, ceramic fuse, and many more.
The principle of operation of the fuse is based on the "heating effect of the current", i.e. whenever there is a short circuit, overcurrent, or incorrect connection of the load, the thin wire inside the fuse melts due to the heat generated by the strong current flowing through it. . Therefore, it disconnects the power supply from the connected system. In normal circuit operation, the fuse wire is only a very low resistance component and does not affect the normal operation of the system connected to the power supply.
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