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प्रश्न
Power available from solar cells : DC : : power require to run domestic equipments : _________
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उत्तर
Power available from solar cells : DC : : power require to run domestic equipments : AC
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संबंधित प्रश्न
Why is the copper tube of a solar water heater painted black from outside?
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.
What is a solar cell? Draw the labelled diagram of a solar cell.
State the advantages and disadvantages of using solar cells.
Why is the solar cooker box painted black from inside?
Why is the solar cooker box covered with a glass sheet?
The part of box-type solar cooker which is responsible for producing greenhouse effect is:
(a) plane mirror reflector
(b) black coating inside the box
(c) glass sheet cover
(d) utensils placed in the cooker box
Solar cells are made of:
(a) conductors
(b) insulators
(c) semi-conductors
(d) super-conductors
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
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
In many applications, solar cells are connected to rechargeable batteries. Why is this so?
Name two devices which can be utilised for the cooking of food so as to save fuel.
Assertion (A): A solar cooker cooks the meal due to the greenhouse effect.
Reason (R): The plane mirror is responsible for producing the greenhouse effect.
Solar reflectors are important, why?
Complete the following flow chart.
Complete the table.
| Limitations of Solar energy | Limitations of Wind energy |
What is the disadvantage of solar energy?
Write a note on Kamuthi Solar Project.
