Explain how a fuse helps to protect a circuit, in simple words for class 7
Answers
Answer:
To explain this, we first have to recall the functions of a fuse.
Why do we use it?
A fuse is designed to melt and separate into two pieces for the purpose of breaking a circuit in the event of excessive current. A circuit breaker is a specially designed switch that automatically opens to interrupt circuit current in the event of an overcurrent condition.
Thus, it is really important and protects a circuit.
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Answer:
Explanation:
A fuse is a safety device which limits current in circuit as a result it prevents damages to electrical circuits and possible fires. Fuses used in electrical appliances. In order to make a battery the negative terminal of one cell is connected to the positive terminal of the other cell.A fuse of any domastic circuit has a very low melting point so as the heat is proportional to flow of electricty . so ast the amount of electricty flowing through the cross section is increased the amount of heat also inceras and as a result the fuse wire melt down and the flow of electricty is braked . and it protects the circuit.