Maharashtra BoardEnglish MediumSTD 9ScienceCurrent Electricity3 Marks
Question
explain the statement : Fuse used in electrical circuit can save electrical objects from damage.
✓
Answer
Fuse wire is used to protect domestic appliances.
It is made of a mixture of substances and has a specific melting point.
It is connected in series to the electric appliances. If for some reason, the current in the circuit increases excessively, the fuse wire gets heated and melts.
The circuit gets broken and the flow of current stops, thus protecting the appliance.
This wire is fitted in a groove in a body of porcelain-like non-conducting material. For domestic use, fuse wires with upper limits of 1 A, 2 A, 3 A, 4 A, 5 A and 10 A are used.
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