Household Electrical Energy


 
 
Concept Explanation
 

Household Electric Energy

The Mains:

It is common source of electricity. The electricity which is produced in power station is carried through wires to different city sub- stations. From these city sub- stations it is carried to the electric poles through the transformers. Then, from these poles, electricity reaches the mains board fixed in our houses for distribution through the wires. All the electrical gadgets in your house like fans, an A.C. a geyser, a TV, an electric iron, bulbs, tube lights, etc. work using this electricity supplied from the mains.

Overloading: 

It is a situation when two many electric appliances are connected to a single socket, they draw an extremely large amount of current from the household circuit. The flow of the large current due to overloading may heat the copper wires of household wiring to a very high temperature and fire may be started. 

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Sample Questions
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Question : 1

By which of the following devices is consumed electrical energy mesured ?

Right Option : A
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Explanation
Question : 2

Which of the following statements is true about using household electrical appliances ?

Right Option : B
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Explanation
Question : 3

If electrical wires and appliances are overheated due to high electric current they can cause ________

Right Option : D
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Explanation
 
 
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