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प्रश्न
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.
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उत्तर
Given a potential difference of 18 V and a current of 3 A, the required output is a potential difference of 72 V and a current of 9 A. In a circuit, voltage stays the same when components are connected in parallel, but it increases when they are connected in series. On the other hand, current remains unchanged in a series connection, while it increases when components are connected in parallel.
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संबंधित प्रश्न
What kind of mirror – concave, convex or plain – would be best suited for use in a solar cooker? Why?
What is the range of temperature which can be achieved in a box-type solar cooker in two to three hours?
What is solar constant? What is 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
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:
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
In a solar water heater, why is the storage tank placed at a higher lever than the solar panel containing coils?
Name two devices which can be utilised for the cooking of food so as to save fuel.
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?
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.
A silicon solar cell of dimension 1 sq.cm. generates a current of about ___________.
Solar reflectors are important, why?
Which one of the following forms of energy leads to least environmental pollution in the process of its harnessing and utilisation?
Choose the correct statement.
______ is not harmful to the environment.
Kamuthi solar power project is situated in ______ district in Tamil Nadu.
______ is considered as a great source of energy.
