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ICSE Class 9 Physics Question 14 of 16

Heat and Energy — Question 12

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Question

Question 12

In a hydroelectric plant :

  1. Water is converted to steam to turn turbines and produce electrical energy.
  2. Potential energy of stored water is converted into electrical energy.
  3. Kinetic energy of stored water is converted into electrical energy.
  4. All of the above.
Answer

Potential energy of stored water is converted into electrical energy.

Reason — In a hydroelectric plant, water is stored at a height in a dam. When it flows down, its potential energy is converted into kinetic energy, which then drives turbines to produce electricity.