Describe briefly the working of following:
(a) Magnetic cranes
(b) Fuse
(c) MCB
Answers
Answer:
Magnetic cranes :
The electromagnetic cranes work by using a magnetic field that is created by an electric current that can be turned off and on whenever it is necessary. The electromagnet consists of an iron middle with a wire wrapped around it, which is where the electric current travels. This is a real life electromagnetic crane .
Fuse :
In electronics and electrical engineering, a fuse is an electrical safety device that operates to provide overcurrent protection of an electrical circuit. Its essential component is a metal wire or strip that melts when too much current flows through it, thereby stopping or interrupting the current.
MCB :
miniature circuit breaker; a small trip switch operated by an overload and used to protect an electric circuit, esp a domestic circuit as an alternative to a fuse.
Answer:
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