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प्रश्न
A silicon solar cell of dimension 1 sq.cm. generates a current of about ___________.
पर्याय
50 mA
30 mA
50 A
30 A
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उत्तर
A silicon solar cell of dimension 1 sq.cm. generates a current of about 30 mA.
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संबंधित प्रश्न
Name some of the solar energy devices.
What type of reflector is used in a box-type solar cooker?
Name the semi-conductor material which is usually used for making solar cells.
State the advantages and disadvantages of using solar cells.
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 many applications, solar cells are connected to rechargeable batteries. Why is this so?
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.
Draw neat and labelled diagram.
One solar panel produces a potential difference of 18 V and current of 3 A. Describe how you can obtain a potential difference of 72 Volts and current of 9 A with a solar array using solar panels. You can use sign of a battery for a solar panel.
Re-write the statement by selecting the appropriate option.
The solar lamp uses the ................... energy.
Which of the following solar radiations pass through the atmosphere of Earth: X -rays, ultraviolet rays, visible light rays or infrared radiation?
What are the major utilizers of solar energy in the world?
Power available from solar cells : DC : : power require to run domestic equipments : _________
The potential difference available from a solar cell depends on its area.
Solar reflectors are important, why?
Complete the table.
| Limitations of Solar energy | Limitations of Wind energy |
Choose the correct statement.
______ is not harmful to the environment.
______ is considered as a great source of energy.
Observe the figure and label it properly:
- What is the figure related to?
- Why are reflectors used?
- Draw a flow chart showing different stages in such a process.
- How is the process used to generate electricity?
- What other method can be used to generate electricity using the same energy source?
