Electricity From The Ocean


 
 
Concept Explanation
 

Electricity From The Ocean

Electricity From Oceans:

Electricity can be generated from the ocean by utilizing the following facts.

  •  Tides cause the level of sea water to rise and fall periodically. This is mainly due to the gravitational pull exerted by the moon, and to some extent by the sun. The water level is maximum at high tide and minimum at low tide. The difference in water levels can be utilized to generate electricity.
  •  Waves in the ocean involve a lot of kinetic energy, which can be converted into electrical energy.
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    Sample Questions
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    Question : 1

    Which of the following are correct ?

    (a) The water at the surface of the ocean is warmer than the water deep below.

    (b) The temperature difference between the upper surface ocean and the deep surface ocean can be utilized to generate electricity .

    Right Option : C
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    Question : 2

     Tides cause the level of _________________ to rise and fall periodically.

    Right Option : A
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    Explanation
    Question : 3

    Which of the following are correct ?

    (a)  Waves in the ocean involve a lot of potential energy, which can be converted to electricity.

    (b)  The water level is maximum at high tide and minimum at low tide.

    Right Option : B
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