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Different Forms of Energy
1.
Heat Energy
2.
Mechanical Energy
3.
Electrical Energy
4.
Solar Energy
5.
Chemical Energy
6.
Nuclear Energy
Energy can be converted from one form to another form. Laws of Thermodynamics
restricted the conversion efficiency.
Ordinary Oil-fired electrical power generating plant has an efficiency of around
20-30%.
Fuel Cell has the highest theoretical efficiency that approaches 90%.