GATE (Graduate Aptitude Test in Engineering) Electronics & CE (EC) Control Systems-Basic Control System Components Study Material (Page 1 of 4)

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Physical Quantities & Supplementary Quantities

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Introduction

In every branch of Science, we must deal with theoretical, mathematical, computational, experimental, instrumental, and applied aspects. High precision, atomization, miniaturization are the needs of the day. For analyzing any phenomenon, we take in to account all these points collectively known as a scientific approach. In this approach, we may perform measurements of some quantities. While travelling through a car, for example, we measure time interval, distance travelled, petrol consumed etc. For launching a satellite in space, scientists talk about pay load, frequency of transmission of signal, time period of revolution and many other things. All such quantities wh…

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Scalar and Vector Physical Quantities and Algebra of Vectors

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Scalar and Vector Physical Quantities

The quantities which do not need the specification of direction for their description are known as Scalars. Distance, time, speed, pressure, work, energy, mass, electric charge, temperature, pressure, power, pressure, Refractive index, plane angle, solid angle electric charge, electric potential is some of the examples of scalar quantities. On the …

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