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प्रश्न
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उत्तर
An electric fuse is a device which is used to limit the current in an electric circuit. The use of a fuse thus safeguards the circuit and appliances connected in that circuit from being damaged. It is a short piece of wire made of an alloy of lead and tin. If the current passing through the fuse exceeds the safeguard limit the heat produced melts the fuse and this breaks the circuit.
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संबंधित प्रश्न
To which wire should the fuse be connected?
Why is the fuse wire fitted in a porcelain casing?
Explain the meaning of the statement ‘the current rating of a fuse is 5 A’.
‘A fuse is rated 8 A’. can it be used with an electrical appliance of rating 5kW, 200V?
The rating of a fuse connected in the lighting circuit is ______.
Why fuse wire must always be connected in ‘live’ wire? Explain.
Where are the cartridge type fuse used?
What is the rating of fuse used in power circuits, in domestic use?
What is an ‘electric fuse’? State its two characteristics of electric fuse.
Two fuse wires are rated 5 A and 20 A. Which of the two is longer ?
