Inception, expansion and change of universe is effect of conversion of energy between different forms. We are surrounded with energy waves and processes. Types of energy can be classified in many forms viz. electrical energy flowing in electrical appliances and overhead lines, mechanical energy in all moving objects and machines, potential energy in falling water, heat energy in sun rays, sound energy during speech, wind energy in flowing wind, tidal energy in sea and many more. In all type of energy forms, electrical energy is most feasible and easily convertible in other forms of energy.
Now a days we generally hear through television, newspaper, magazines and other media sources, words like electric vehicles, renewable energy, intelligent control, robust control, smart grid, solar energy, electrical locomotives, electric trains etc. What are these all about? How these things originated? Why we need these? How these things are going to change our life? All of these questions generally hit our mind. Continue reading