electrical engineering

The devices which deliver electricity are called the 'sources'. Lamps, electric engines, etc. which consume electricity are called loads. Switches are used to switch the loads on and off whenever necessary. Hence, the source, the loads, and the switches..

Electric Circuits and their Components - The devices which deliver electricity are called the 'sources'and lamps, electric engines, etc. which consume electricity are called 'loads'. Switches are used to switch the loads on and off whenever necessar..

Electric Circuits and their Components - The devices which deliver electricity are called the 'sources'. Lamps, electric engines, etc. which consume electricity are called loads. Switches are used to switch the loads on and off whenever necessary. H..

The application of Boolean algebra to electronic devices such as computers, lies in the restriction of the variable to two possible condition 'On and Off' or 'True or False' or numerically '1 or 0'. The electric circuits carry out the Boolean logic. In practice, electronic engineersh..

. Boolean algebra is used in many spheres of activities such as electrical and telecommunication engineering, analysis of propositions, controlling the flow of pulses, mathematical expressions. Therefore, Boolean algebra is considered to be modern mathematics. Before we learn th..

Take two beakers one with hot water and another with cold water. Dip your fingers in hot water your finger experience hotness. Then dip your fingers in cold water. Your fingers experience coldness. What makes the water hot or cold? Heat energy content in a body makes it hotter or colder. Greater t..

Man is surrounded by an ocean of energy. Mankind has tapped only a fraction of it. The most colossal dynamo of all is the sun, an unimaginable vast powerhouse which affects everything on earth. From time immemorial man has learnt to harness this energy. In 100 B.C. Romans used coal as a fuel to pro..

On destructive distillation, coal yields useful products like coal gas, coal tar, ammonia and coke. Generation of electricity Domestic fuel for cooking and heating Manufacture of synthetic petroleum and natural gas To heat water in steam engines and boilers Coal i..

Law of Conservation of Energy - Let us see what is actually taking place in the following examples: Steam engine: The coal burns. Heat due to the combustion of coal converts water into steam. The expansive force exerted by the steam on the piston of the engine moves the locomoti..

Law of Conservation of Energy - Let us see what is actually taking place in the following examples: Steam engine- Here the coal burns and the heat due to the combustion of coal converts water into steam and the expansive force exerted by the steam on the piston of the engine mov..