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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 type of reactions occurring inside the sun produce solar energy?
What type of reflector is used in a box-type solar cooker?
What is the range of temperature which can be achieved in a box-type solar cooker in two to three hours?
What is a solar cell? Draw the labelled diagram of a solar cell.
Name the semi-conductor material which is usually used for making solar cells.
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 a solar water heater, why is the storage tank placed at a higher lever than the solar panel containing coils?
Solar cells are used to provide the electric current to charge the batteries of a car driven by an electric motor. Describe the energy changes which take place.
Name one source of energy which is not derived from solar energy directly of indirectly.
Which of the following is used in solar cooker to harvest the solar energy?
a) Solar panels
b) Silicon cell
c) Mirrors
d) Glass lid
Solar photovoltaic cells convert the solar radiation energy directly into ______ energy.
The power produced from solar cells is a DC.
State the importance of inverters.
Complete the table.
| Limitations of Solar energy | Limitations of Wind energy |
What is the disadvantage of solar energy?
Which one of the following forms of energy leads to least environmental pollution in the process of its harnessing and utilisation?
How can solar energy be harnessed? Mention any two limitations in using solar energy. How are these limitations overcome?
