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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 ?
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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
State the characteristics required in a material to be used as an effective fuse wire.
A fuse is rated 8A. Can it be used with an electrical appliance rated 5 KW, 200 V ? Give a reason.
A fuse is connected in ______ with the ______ wire.
Explain the meaning of the statement ‘the current rating of a fuse is 5 A’.
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.
Why fuse wire must always be connected in ‘live’ wire? Explain.
Where are the cartridge type fuse used?
How does the length of a fuse wire depend on its current rating?
Name two safety devices which are connected to the live wire of a household electric circuit.
