# Electrical and electronics basics

Power Engineering | Telecommunication| Electronics engineering | Fields and waves | Control System Engineering| Differential Equations

Electrical and Electronics engineering is a branch of engineering science. It involves two subject areas related to circuits which control high voltage and circuits which control low voltage. The high voltage study is basically
electrical engineering and the low voltage study is electronic engineering. The above definition may be unconventional but to my view electrical and electronics engineering is all about circuits. Nicola Tesla
greatly contributed to ac machinery development. He is one of the greatest inventors and scientists of all the time. Then the inventor of radio , Guglielmo Marconi must be considered
a pioneer in the development of wireless communication. Electrical engineering heavily relies on the application of mathematics like rest of the engineering disciplines. Subjects of it are now diverse and unique. Energy
is the most important issue now a days and electrical engineers are trying their best to make the power generation and distribution most efficient. Electricity has conquered darkness when Tomas Alva Edison had
invented the first electrically powered lamp. Then other electrical machinery began to be developed. They replaced old fashioned engines in many power systems. Before going into more details, we need to know that
electricity can be of two forms : one is static electricity and the other is moving or dynamic electricity. There is an intermediate form which may be called quasi-static electricity. Many dynamic electrical phenomena can be modeled with
quasi-static electricity postulates. In quasi-static case the time varying part is negligible compared to spatially varying part.

Electrical systems have been an integral part of all the applications of modern engineering science. Just because without electricity no rocket would fly, no industry would run, not even internet. Electrical engineering not only involves developing new machinery but also controlling them. Control system engineering is a sub field of electrical engineering. It gives stability to electrical system like running generator, electrical motor driven machines and many other electrical things. Robots are also controlled machines. Control system designing and analysis must be explained in details to understand how it works. Technological innovation are being made by the help of fruitful research in electrical and electronics engineering. More and more people are pursuing their career in EEE engineering. But we must not forget all the mathematical theorems and physical laws that have brought light to this prestigious branch of engineering. One of the most important theorems is Fourier analysis. Consequently Fourier analysis has become an indispensable mathematical tool in telecommunication system modelling.

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