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Question
What is a fuse?
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Solution
An electric fuse is a safety device, which is used to limit the current in an electric circuit.
RELATED QUESTIONS
A fuse is a short piece of wire of high ______ and of material of low ______.
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?
An electric kettle is rated 3 kW, 250 V. Give reason whether this kettle can be used in a circuit which contains a fuse of current rating 13 A.
How does the thickness of a fuse wire depend on its current rating?
What is the rating of fuse used in light and fan circuits?
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.
(a) Name the electrical appliance shown in the diagram below.
(b) Name the material of the wire used in this device.
(c) Name two important characteristics of this wire.
How does the length of a fuse wire depend on its current rating?
