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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?
State the characteristics required in a material to be used as an effective fuse wire.
For a fuse, higher the current rating ________ is the fuse wire.
Name the factors on which the heat produced in a wire depends when current is passed in it, and state how does it depend on the factors stated by you.
A fuse wire is made of an alloy of ______ and ______. If the current in a circuit exceeds the current rating of the fuse wire, it ______.
What is the rating of fuse used in light and fan circuits?
What is an ‘electric fuse’? State its two characteristics of electric fuse.
Explain the significance of kWh meter, main switch and main fuse in house-circuiting.
Identify the option that displays the correct wiring with correct colour code:
'A fuse is rated 8 A'. Can it be used with an electrical appliance of rating 5 kW, 200 V?
