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प्रश्न
State the characteristics required in a material to be used as an effective fuse wire.
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उत्तर
Characteristics required in a material to be used as an effective fuse wire are
1) High resistivity
2) Low melting point
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संबंधित प्रश्न
Explain the meaning of the student 'current rating of a fuse is 5A'.
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 is a short piece of wire of high ______ and of material of low ______.
Why is the fuse wire fitted in a porcelain casing?
‘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.
(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 ?
What is the rating of fuse used in light and fan circuits?
How does the length of a fuse wire depend on its current rating?
