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प्रश्न
Why is the heating coil placed in a circular porcelain plate in an electric stove?
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उत्तर
The procelain plate (i) is bad conductor of electricity (ii) does not melt till 1000°C.
संबंधित प्रश्न
Name the color code of the wire which is connected to the metallic body of an appliance.
Write true or false
Overloading of electric current in circuits can lead to short circuiting.
A switch is connected to the neutral wire.
When the switch of an electric appliance is put off, it disconnects
Name the material and type of wires for the following:
(a) Connecting wires for lighting
(b) Fuse wire
(c) Heating elements
(d) Connecting wires of a power line
(e) Earthing elements
Name the colour code of the wire which is connected to metallic body of an appliance.
Why is the filament in an electric bulb coiled?
Two fuse wires of the same lengths are rated 5A and 20A. Which of the two fuse wires is thick and why?
A power circuit uses a cable having three different wires. To which wire should the metallic case of the geyser be connected?
