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प्रश्न
(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 ?
उत्तर
(i) Advantage of connecting electrical appliances in parallel combination :
If any appliances gets faulty, rest of the circuit gets unaffected by it and no discontinued supply.
(ii) Characteristics of a fuse wire
1. should easily melt when current exceed safety value.
2. should be good conductor.
(iii) Earth wire
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संबंधित प्रश्न
Explain the meaning of the student 'current rating of a fuse is 5A'.
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.
How is a fuse put in an electric circuit?
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.
Explain the meaning of the statement ‘the current rating of a fuse is 5 A’.
The rating of a fuse connected in the lighting circuit is ______.
Where are the cartridge type fuse used?
(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?
