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Which Type/Types of Power Generation Involve Maximum Number of Steps of Energy Conversion? in Which Power Generation is the Number Minimum? - Science and Technology 2

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Which type/types of power generation involve maximum number of steps of energy conversion? In which power generation is the number minimum? 

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Solution

 The types of power generation involving maximum number of steps of energy conversion are:
(i) Thermal energy based power generation: It involves 5 steps of energy conversion.

Chemical energy in coal →thermal energy→kinetic energy in steam →kinetic enegry in →Electrical enregy 

(ii) Nuclear energy based power generation: It also involves 5 steps of energy conversion. 

Nuclear energy→thermal energy →kinetic energy in steam →kinetic energy in turbine→electrical energy 

The power generation using solar photovoltaic cell involves least number of steps of energy conversion. It involves only two steps of energy conversion.

Energy in sunlight →electric energy

Concept: Natural Gas Energy
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