Electricity And Its Importance
Electricity And Its Importance
Electricity has been part of our lives. Electricity is a useful form of energy. It plays a very important role in our daily life.We use electricity to make our work easier. For example, it is used to run pumps that lift water from ground to the rooftop tank. It is also needed for functioning of televisions, computers,refrigerators, geysers, air conditioners, electric fans, electric bulbs, etc. It has brought many things that surely have made many wonders and life would seem so hard without it.
However, electricity has much more important aspects because it is a fundamental feature of all matter. Electricity is the force that holds together the molecules and atoms of all substances.
Electricity is is used to produce various forms of energy:
1. Heat Energy
2. Light Energy
3. Sound Energy
4. Movement Energy
Heat Energy: Electricity is used in various devices which produce heat.For Example
|
Gyser |
Hair Dryer |
Heater |
|
Microwave Oven |
Light Energy: Electricity is used in various devices which produce light.For Example
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Torch |
Tube Light |
Decoration Lights |
|
|
Sound Energy: Electricity is used in various devices which produce sound. For Example
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Piano |
Musical Toys |
Speaker |
|
|
Movement Energy: Electricity is used in various devices which produce movement in them. For Example
|
|
|
Electric Train |
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Electric Scooter |
Which of the following device converts electrical energy into heat energy? | |||
| Right Option : A | |||
| View Explanation | |||
Which of the following are correct : (a) Electricity is is used to produce light energy. (b) Geyser are used to produce electricity. (c) Electricity is used to produce only heat energy. (d) Speaker produce sound. | |||
| Right Option : D | |||
| View Explanation | |||
Which of the following are correct : (a) Electricity is used to run pumps that lift water from ground to the rooftop tank. (b) Electricity is also needed for functioning of televisions, computers,refrigerators, geysers, air conditioners. (c) Example of movement energy is electric train. | |||
| Right Option : D | |||
| View Explanation | |||
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