D.C. and A.C. CircuitsDefinition of current, Potential, Resistance, Power, and energy, Symbol and units, International system of units, Ohm s law, Kirchhoff s laws, Solution of series, Parallel and series parallel circuits.Generation of alternating emf, Average and rms values, Form and peak factors, Concept of phasor representation, Complex operator j ,. AC circuits involving R, L, C parameters, Reactance and impedance, Power factor and power components in ac circuits, Series and parallel resonances, Simple problems.Construction and principle of operation of moving coil and moving iron instruments (only voltmeters and ammeters), Dynamometer type wattmeter, Induction type energy meter, MeggerDC Machines and TransformersConstruction of DC Machines, Theory of operation of DC Generators, Characteristics of DC Generators, Operating principle of DC motors, Types of DC motors and their characteristics, Speed controls of DC motors.Principles of operation of Transformers, Types, Equivalent circuit, Voltage regulation, Efficiency, Testing, All day efficiency, Principle of operation of three phase transformers, Transformer connection.Induction MachinesConstruction of single phase motors, Types of single phase motors, Double revolving field theory, Starting methods, Capacitor start capacitor run motors, Shaded pole, Repulsion type, Universal motors, Construction, Types, Equivalent circuit, Starting and Speed control. Principle of alternator, Construction details, Types, Equation of induced EMF, Voltage regulation, Methods of starting of synchronous motors, Torque equation, V curves, Synchronous condensers.Electronic Components, Devices and Power ConvertersActive and Passive components, Introduction to transducers, Resistive, Inductive and Capacitive transducers. Basic principle and characteristics of PN diode, Zener diode, Bipolar Junction Transistor, Field Effect Transistors, (JFET, MOSFET), UJT, Thyristor, (SCR, Diac, Triac) Photoelectric devices, (LDR, Photodiode, Phototransistor), Photovoltaic devices, Operating principles of Half and Full wave rectifiers, Bridge rectifier, Choppers, Inverters, Voltage controllers, Voltage Regulators.Digital Electronics and CommunicationsSymbol, Truth table and circuit of basic logic gates, Universal gates, Half adder, Full adder, Flip-flops, RS, JK, T and D, Basic of counters, Shift registers. Telecommunication system, Block diagram, Principles of Modulation, AM, FM, Pulse and Digital Modulation, Data Transmission, Modem, Various communication systems like Radio, TV, Microwave, Satellite, Radar, Fiber optic and ISDN (block diagram discription only), Principle of operation of Mobile phones.
