General use and applications of electricity; Use and applications of electricity to agriculture, Mechanical & Automobile sector; Advantages of electrical energy over other forms of energy. Introduction to basic terms: charge, current, voltage, power, and energy; Ohm’s law; Power dissipation in resistors; Series and parallel combination of resistors; Kirchhoff’s laws; Star-delta conversions; Thevenin’s theorem, Norton’s theorem, and Maximum-power-transfer theorem; Ideal and practical voltage source; Current source.
Concept of alternating voltage and current; Introduction to basic terms: cycle, frequency, time period, amplitude, instantaneous value, rms value, peak value, phase difference, form factor, and peak factor
Primary and secondary cells; Construction, working, and applications of Lead-Acid,; Charging methods for Lead-Acid batteries; Maintenance of Lead-Acid batteries; Series and parallel connection of batteries; Maintenance free batteries; General idea of solar cells, solar panels and their applications.
Classification of materials as conductors, insulators, and semiconductors; Intrinsic and extrinsic semiconductors; p-type and n-type semiconductors; pn-junction diode.
Various Accessories and parts of electrical installation, overview of industrial and domestic wiring systems; Common electrical safety measures; Protection and precaution against electrical shock; Treatment of electrical shock
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