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प्रश्न
State the importance of inverters.
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उत्तर
The inverter is an electronic device that converts DC solar power to AC power which is required to run most of the equipment in domestic and industrial use.
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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?
How much solar energy will be received by 1 m2 area in one hour if the solar constant be 1.4 kW/m2?
Name the semi-conductor material which is usually used for making solar cells.
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.
Why is the solar cooker box painted black from inside?
Solar cells are made of:
(a) conductors
(b) insulators
(c) semi-conductors
(d) super-conductors
The radiations present in sunlight which make a solar cooker work are:
(a) visible light rays
(b) ultraviolet rays
(c) comic rays
(d) infrared rays
In order to make an efficient solar cooker, the cover of the cooker box should be made of:
If the solar constant is 1.4 kW/m2 then solar energy recived by 1m2area in one hour is:
(a) 5040 J
(b) 504.0 kJ
(c) 5040 kJ
(d) 5.04 kJ
Name two devices which can be utilised for the cooking of food so as to save fuel.
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
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.
Re-write the statement by selecting the appropriate option.
The solar lamp uses the ................... energy.
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 |
A silicon solar cell of dimension 1 sq.cm. generates __________ potential difference.
Solar reflectors are important, why?
Solar energy is a non depleting energy. Justify.
______ is not harmful to the environment.
