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ICSE Class 10 Physics Question 2 of 27

Solved 2024 Specimen Paper ICSE Class 10 Physics — Question 3

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Question

Question 1(iii)

For burning of coal in a thermoelectric station, the energy conversion taking place is:

  1. chemical to heat to mechanical
  2. chemical to heat to mechanical to electrical
  3. chemical to heat to light
  4. heat to chemical to mechanical
Answer

chemical to heat to mechanical to electrical.

Reason — A thermal power station is a type of power station in which heat energy is converted to electrical energy.

Here, the chemical energy of coal is changed into heat energy, which is transferred to steam. Then the heat energy of steam changes into mechanical energy of turbine that is further changed into electrical energy.