Notes and Study material for Exams
Industry IN Tamil NADU Introduction: The Industrial Sector is a driver of economic Growth. Industrial sector is important in terms of its contribution to Gross State Domestic Product (GSDP) and EMPLOYMENT. This sector which is vital in stimulating growth of the economy is closely interconnected with primary and tertiary sectors through its forward … Read more
Science & TechnologyFor Notes Click on the topics [su_posts template=”templates/list-loop.php” posts_per_page=”100″ tax_term=”1321″ tax_operator=”0″ order=”desc”] Physical Science (I)System of Units: MKS, CGS and SI (II)Definition of speed,velocity, gravity, mass, weight, force, impact, work,power and energy. (III)Solar System, relative position of Earth with respect to Sun and other planets, movement of earth and moon in solar system, lunar and … Read more
Science & Technology developments in India Science and Technology hold the key to the progress and development of any nation. Technology plays a Fundamental role in wealth creation, improvement of the Quality Of Life and real economic Growth and transformation in any Society. The role of Science and Technology in our daily life is altering … Read more
Telangana Industries Manufacture of pharmaceuticals, medicinal, clinical and botanical products constitute about 29% of the GVA within the manufacturing sector, followed by manufacture of electrical equipment (11%), manufacture of other non-metallic mineral products (9 %) and manufacturing of food products (9 %). In terms of Investment, manufacture of pharmaceuticals, other non-metallic mineral products, rubber and … Read more
Polyvinyl chloride What is Polyvinyl Chloride (PVC), and What is it Used For? Polyvinyl Chloride (PVC) is one of the most commonly used thermoplastic polymers in the world (next to only a few more widely used plastics like PET and PP). It is a naturally white and very brittle (prior to the additions of plasticizers) plastic. PVC has been around longer than most … Read more
Conductors, semiconductors and insulators Materials are classified as conductors, insulators, or semiconductors according to their electric conductivity. The classifications can be understood in atomic terms. Electrons in an atom can have only certain well-defined energies, and, depending on their energies, the electrons are said to occupy particular energy levels. In a typical atom with many … Read more
Engineering Plastics Engineering plastics are a group of plastic materials that have better mechanical and/or thermal properties than the more widely used commodity plastics (such as polystyrene, PVC, polypropylene and polyethylene). Being more expensive, engineering plastics are produced in lower quantities and tend to be used for smaller objects or low-volume applications (such as mechanical … Read more
Defence Research and Development Organization (DRDO) The DRDO was formed in 1958 following the merge of the Technical Development Establishment (TDE) of the Indian Army, the Directorate of Technical Development & Production (DTDP) and the Defence Science Organisation (DSO). DRDO laboratories conduct research in a number of fields, such as aeronautics, rockets and missiles, electronics … Read more
Current Electricity Electric current is the rate of flow of electric charge through a conducting medium with respect to time. It is caused by drift of free electrons through a conductor to a particular direction.Charges in motion constitute an electric current. Such currents occur naturally in many situations. Lightning is one such phenomenon in which … Read more
PN Junction Diode A PN-junction diode is formed when a p-type semiconductor is fused to an n-type semiconductor creating a potential barrier voltage across the diode junction The effect described in the previous tutorial is achieved without any external voltage being applied to the actual PN junction resulting in the junction being in … Read more