Advertisements
Advertisements
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 ?
Advertisements
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
APPEARS IN
संबंधित प्रश्न
A fuse is rated 8A. Can it be used with an electrical appliance rated 5 KW, 200 V ? Give a reason.
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?
How is a fuse put in an electric circuit?
Two fuse wire of same length are rated 5 A and 20 A. Which of the two is thicker?
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.
The rating of a fuse connected in the lighting circuit is ______.
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.
