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प्रश्न
An electric cell produces electricity from the ______ ______ in it.
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उत्तर
An electric cell produces electricity from the chemicals stored in it.
Explanation:
An electric cell converts chemical energy stored in its chemicals (usually through a chemical reaction between the electrolyte and the electrodes) into electrical energy. This energy is then used to power electrical devices connected to the cell.
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संबंधित प्रश्न
An electric fuse works on the:
(a) chemical effect of current
(b) magnetic effect of current
(c) lighting effect of current
(d) heating effect of current
Two exactly similar heating resistances are connected (i) in series, and (ii) in parallel, in two different circuits, one by one. If the same current is passed through both the combinations, is more heat obtained per minute when they are connected in series or when they are connected in parallel? Give reason for your answer.
Which electric heating device in your home do you think have resistors which control the flow of electricity?
Give Scientific reason
In the electric equipment producing heat e.g. iron, electric heater, boiler, toaster etc, an alloy such as Nichrome is used, not pure metals.
Give scientific reason :
In the electric equipment producing heat e.g. iron, electric heater, boiler, toaster, etc., an alloy such as Nichrome is used, not pure metals.
Write two devices based on the heating effect of electric current.
Name any two appliances which work under the principle of heating effect of current.
A student boils water in an electric kettle for 20 minutes. Using the same mains supply he wants to reduce the boiling time of water. To do so should he increase or decrease the length of the heating element? Justify your answer.
Define the following:
Electrolyte
Find the odd one out.
