Electrical and Technology

When we try to understand energy, we have to understand energy resources and their limitations along with their impact on the environment. All the developed nations of the world are consuming more energy for their economic development as compared to developing nations. We can help to save the environment by:- 1) Reducing the use of energy without affecting the progress. 2) Reducing the waste produced & 3) Using renewable energy sources. Environmental Impacts Of Fossil Fuels:- 1). Human Activities Responsible for Greenhouse Gases:- The important activities responsible for releasing greenhouse gases into the atmosphere are: 1). The production of carbon dioxide when fossil fuels are used to generate energy and when fossil fuels are used to generate energy and when forests are cut down and burned. 2). The production of methane and nitrous oxide from agricultural activities, changes in land use and other sources. 3). The production of man made chemicals called halocar

Energy use in India is quite appreciable for commercial and industrial applications. The increase is almost 5% per year. The energy resources used are  : COAL BIOMASS (Wood and Cow dung) OIL (Petrol, Diesel, and Kerosene) ELECTRICITY (about 70% of electricity in India is generated by polluting coal.) Energy exists in many forms. Broadly speaking, we can classify energy into two types, potential and kinetic energy. Potential Energy The potential energy is the stored energy and the energy of position (gravitational). Potential Energy exists in many forms. 1). Chemical Energy:- The energy stored in the bonds of atoms and molecules is called chemical energy . The examples of stored chemical energy are petrol, diesel, kerosene,  natural gas, coal, wood and other biomass. The stored chemical energy is released as heat when these fuels burn. 2). Nuclear Energy:- The energy stored in the nucleus of an atom, the energy that holds the nucleus together is called