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प्रश्न
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.
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उत्तर
i.Type of connection of solar cells in ‘A’ is ‘in series’ connection and it will give maximum potential difference.
ii.Advantage: Solar energy is an eco-friendly source of energy. It does not cause any pollution.
Disadvantage: As it can be produced in presence of sunlight only, it needs to be stored in batteries for use.
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संबंधित प्रश्न
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Name some of the solar energy devices.
Name that part of a box-type solar cooler which allow the sun's heat rays to enter the box but does not allow inside heat to go out.
Name the semi-conductor material which is usually used for making solar cells.
If the energy received by 5 m2 area in 10 minutes is 4200 kJ, calculate the value of solar constant.
Why is the solar cooker box covered with a glass sheet?
The value of solar constant is:
(a) 1.4 kWh
(b) 1.4 kW/m
(c) 1.4 kW/m2
(d) 1.4 kW/m3
A solar cooker may not cook food if
(a) the solar cooker is not placed in the shade
(b) the glass sheet cover of solar cooker is not closed
(c) a convex mirror reflector is not used
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
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 a current of about ___________.
The potential difference available from a solar cell depends on its area.
Give scientific reason.
Hydropower, solar energy and wind energy are called renewable energy.
Distinguish between the following.
Electricity generation from solar cells and solar thermal power generation
Complete the following flow chart.
Solar energy is a non depleting energy. Justify.
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?
