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प्रश्न
Why is the fuse wire fitted in a porcelain casing?
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उत्तर १
The fuse wire is fitted in a porcelain casing because porcelain is an insulator of electricity.
उत्तर २
Because it is a very safe and convenient device. The fuse wire is stretched between two terminals in a porcelain holder. This porcelain holder is tightly fit into a porcelain socket which is connected in the live wire in the circuit. Porcelain is a very good insulator and the part of the holder we touch, is far from the live wire and so there are no dangers of getting any electric shock.
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संबंधित प्रश्न
Explain the meaning of the student 'current rating of a fuse is 5A'.
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.
A fuse is rated 8A. Can it be used with an electrical appliance rated 5 KW, 200 V ? Give a reason.
What is a fuse?
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?
(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.
State the purpose of using a fuse in a circuit.
'A fuse is rated 8 A'. Can it be used with an electrical appliance of rating 5 kW, 200 V?
