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प्रश्न
Make a table based on forms of energy and corresponding devices:
| Forms of Energy | Devices | |
| a. | Electric | _________ |
| b. | Mechanical | Sewing machine, Bicycle |
| c. | Thermal | __________ |
| d. | _________ | Solar cooker, Solar heater |
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उत्तर
| Forms of Energy | Devices | |
| a. | Electric | Electric Fan, Electric iron |
| b. | Mechanical | Sewing machine, Bicycle |
| c. | Thermal | Steam Engine, Steam turbine |
| d. | Solar | Solar cooker, Solar heater |
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संबंधित प्रश्न
What is the range of temperature which can be achieved in a box-type solar cooker in two to three hours?
Explain why, a plane mirror reflector is used in a box-type solar cooker.
State the advantages and disadvantages of using solar cells.
What is a solar cell panel? For what purpose is it used? State its two main advantages.
With the help of a labelled diagram, explain the construction and working of a solar cooker.
Why is the solar cooker box covered with a glass sheet?
Solar cells are made of:
(a) conductors
(b) insulators
(c) semi-conductors
(d) super-conductors
In order to make an efficient solar cooker, the cover of the cooker box should be made of:
What differences would you expect in the charging of car batteries (i) in bright sunlight (ii) on a cloudy day (iii) at night?
Observe the connections of cells shown in the following images.
i. Which connection will give maximum potential difference?
ii. Give one advantage and one disadvantage of this energy.
Which of the following solar radiations pass through the atmosphere of Earth: X -rays, ultraviolet rays, visible light rays or infrared radiation?
Solar photovoltaic cells convert the solar radiation energy directly into ______ energy.
A silicon solar cell of dimension 1 sq.cm. generates __________ potential difference.
Find an odd one out.
The power produced from solar cells is a DC.
The potential difference available from a solar cell depends on its area.
Distinguish between the following.
Electricity generation from solar cells and solar thermal power generation
Which one of the following forms of energy leads to least environmental pollution in the process of its harnessing and utilisation?
Kamuthi solar power project is situated in ______ district in Tamil Nadu.
How can solar energy be harnessed? Mention any two limitations in using solar energy. How are these limitations overcome?
