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प्रश्न
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 ______.
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उत्तर
A fuse wire is made of an alloy of lead and tin. If the current in a circuit exceeds the current rating of the fuse wire, it melts.
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संबंधित प्रश्न
To which wire should the fuse be connected?
What is a fuse?
Why is the fuse wire fitted in a porcelain casing?
Describe with the aid of a diagram some form of a fuse which is used in the electric lighting circuit of a house. Give two reasons why a fuse must not be replaced by an ordinary copper wire.
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.
(i) Write one advantage of connecting electrical appliances in parallel combination.
(ii) What characteristics should a fuse wire have ?
(iii) Which wire in a power circuit is connected to the metallic body of the appliance ?
The rating of a fuse connected in the lighting circuit is ______.
Explain the significance of kWh meter, main switch and main fuse in house-circuiting.
Two fuse wires are rated 5 A and 20 A. Which of the two is longer ?
