Alternate Sources Of Energy-Page 2
Solar cell The process in which a material produces electric current upon exposure to light is called photoelectric effect.Solar cell is a device used to convert solar energy into electrical energy. Biomass The organic matter obtained from plant and animal wastes used for energy conversion is called biomass.The energy obtained from biomass is called bio energy. Advantages of bio energy: 1.It provides clean fuel 2.maintains environment to be clean 3.reduces carbon dioxide content in the atmosphere 4.improves the water retention capacity of soil. Biogas Biogas is produced from biomass by anaerobic digestion.The major constituents of bio -gas are methane(about 70%) and carbon dioxide.In rural areas biogas is produced specifically using cowdung in gobar gas plant.It provides a) cooking gas b)manure c) gas for lighting d) fuel for running small engines Energy conversion from biomass Biomass is con...