Notes and Study material for Exams
Endothermic Reactions Endothermic reactions are those chemical reactions where energy is absorbed by the system from the surroundings mostly in the form of heat. The concept is applied in the physical sciences like chemical reactions where hear is converted to chemical bond energy by way of experiments. Common examples of endothermic … 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 … Read more
Enabling legislations, financial and procedural incentives, and business opportunities for investors Today, economy of India is the seventh largest in the world by nominal Gross Domestic Product (“GDP”) and third largest by purchasing power parity and the annual Growth rate of GDP has been 7.3% from 2011 to 2015. The country is classified … Read more
Elementary idea of LASER Laser, a device that stimulates atoms or Molecules to emit Light at particular wavelengths and amplifies that light, typically producing a very narrow beam of radiation. The emission generally covers an extremely limited range of visible, infrared, or ultraviolet wavelengths. Many different types of lasers have been developed, with … Read more
Electricity and its effects -electric intensity, potential, potential difference Electricity is the physical flow of electrons, referred to as an electrical current. Electricity is an energy carrier that efficiently delivers the energy found in primary sources to end users, who in turn convert it into energy Services. Electricity can be created in three … Read more
Electric transformers Electrical transformers are machines that transfer electricity from one circuit to another with changing voltage level but no frequency change. Today, they are designed to use AC supply, which means that fluctuation in supply voltage is impacted by the fluctuation in the current. So, an increase in current will bring about … Read more
Electric power plant Electricity is produced at a an electric power plant. Some fuel source, such as coal, oil, natural gas, or Nuclear Energy produces heat. The heat is used to boil water to create steam. The steam under high pressure is used to spin a turbine. The spinning turbine interacts with a … Read more
Electric discharge in gases Electrical discharge through gases is studied by using a specially designed glass tube commonly called as a discharge tube. It consists of a cylindrical glass tube having a side tube, and two metallic electrodes one at each end. These electrodes can be connected to the respective terminals of a … Read more
E-Learning– IT& Rural applications A learning system based on formalised teaching but with the help of electronic Resources is known as E-learning. While teaching can be based in or out of the classrooms, the use of computers and the Internet forms the major component of E-learning. E-learning can also be termed as a … Read more
Dry cell A dry cell is an electrochemical cell that uses a low-moisture electrolyte instead of a liquid electrolyte as a wet cell does. This feature makes the dry cell much less prone to leaking and is therefore more suitable for portable applications. The zinc-carbon battery is one of the most common examples … Read more