Question

What is meant by fuse?????

Answer 1

It is a like resistor which absorb the current. And help in smooth flow of electricity

Answer 2

ANSWER.....


The safety device with save electric device on overloading and short circuit is called fuse.

the thickness and length of fuse wire depend on maximum current allowed through the circuit. it works on heating effect of current. it is used for protecting our domestic wiring is fitted just above our main switch on switch board.



HOW DOES FUSE WORKS???

the main fuse in domestic wiring consists of porcelain fuse holder having two brass terminal it. this is connected to live wire. the other part of the fuse is removable fuse grip which is also made of porcelain. the fuse grip has a fuse wire fixed in it. When fuse grip which is fixed in fuse holder then the circuit of domestic wiring is completed. show under normal circumstances when current is within limit the fuse wire intact and electric current is available in our wiring.

when short circuit and overloading take place the current not become large and heat the fuse wire too much. since melting point of fuse wire is much lower than copper wire the fuse wire melts and break the circuit. when fuse wire break Electric Supply switch off before any damage can be done to the rest of wiring.



NOTE:- a pure copper wire cannot be used as fuse wire because it has a high melting point due to which it will not melt easily when a short circuit take place.


The diagram of fuse wire is in attachment




hope it helps
thanks...