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Principles Of Electronics

The subject of electronics, although primarily developed as a by-product of radio communication, is now a vast one and is probably more extensive than the radio communication itself. At present, no research or development laboratory in any branch of science or engineering is worth the name without some electronic instruments and devices.

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B . Chatterjee

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Miṉṉaṇuviyal kōṭpāṭukaḷ


Asia Publishing House

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Most of the precision measuring devices use electronic instruments. Modern defence services cannot work without it. Radar, auto-pilot and automatic control equipments, guided missiles, fire control radars-in short, all modern defence equipments are primarily controlled by electronics. Besides, radio communication plays also an important part there. Modern industries also use electronics in motion and automatic process control as also for quality control A country’s progress can very well be judged by the nurer of electronic devices used by it. Broadly speaking, any device which uses the modern of free electron in some way or other may be called an electronic device. But, usually a device using electron tubes and/or semiconductor devices with associated circuitry is called an ele The greatest advantage of electronics in measuring equipments and associated techniques lies in the fact that it utilises the motion An electron is of electron in electron tubes, semiconductors etc. the lightest material known, having a mass of 9-107 × 10-1 Kilogram, and thus offering the minimum possible inertia. a result it can record very fast movements and very small time intervals, resulting in a high precision of measurement and being capable of cling with high frequencies.


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