1. ELECTRIC CIRCUIT, NETWORKS, MAGNETISM, AC FUNDAMENTALS, TRANSFORMERS
Electric Current, Voltage Resistance, Specific Resistance, Electric Power, Electric
Energy – Definition and Units, Laws of Resistance, Temperature Coefficient of
resistance, Ohms Law, Series, Parallel, Series – parallel circuits (DC) – calculation of
branch current and voltages, Kirchhoff’s Laws, Superposition theorem, Thevinin’s
Theorem, Static Electricity, electric field, field strength or field intensity, flux density,
flux, Faraday’s Laws of electromagnetic induction, Flemings right hand rule, Flemings
left hand rule. Generation of AC single phase & three phase voltage, difference between
AC and DC voltage, cycle, frequency, time period, amplitude, RMS value, average value,
power factor, form factor, Q factor, phase, phase difference – definitions, reactance,
impedance in RLC series circuit, Resonance, single phase and three phase power –
formula, voltage and current in star and delta connections, Transformer – construction
and working principle, motors and generators – working principles, relays.
2. PASSIVE COMPONENTS, ACTIVE COMPONENTS, SEMI CONDUCTORS, DISPLAY DEVICES, L E D
Carbon film resistor, wire wound resistors, metal film resistor application,
colour coding, variable resistors – applications, tolerance. Capacitor – paper, mica,
polyester, ceramic – construction and applications, variable capacitors – applications.
Inductors, Chokes – RF and AF – applications, conductors, insulators, semi conductors,
intrinsic and extrinsic semi conductors, electrons, holes, doping, P and N type, majority
and minority carriers, PN junction, depletion layer, behaviour of PN junction under
forward and reverse bias, static and dynamic resistance, half wave, full wave, bridge
rectifiers, ripple factor, different types of filters, PNP and NPN transistors, CB and CE
configurations, clipping and clamping circuits – positive and negative, zenor diodes –
applications. UJT, FET, MOSFET, SCR, DIAC, TRIAC, power diodes – symbols and
applications, photo voltaic cell, L E D – construction – applications, LCD, LDR, OPTOCOUPLER, PHOTO diode – working and applications, seven segment display, laser
diodes applications
3. ELECTRICAL AND ELECTRONICS MEASURING INSTRUMENTS AND INTRUMENTATION, TRANSDUCERS, POWER SUPPLY
Primary instrument, secondary instruments, voltmeter, ammeter, wattmeter,
multimeters – analogue and digital meters, difference between analogue and digital
meters, Energy meter – Megger applications, CRO, CRT, measurement of voltage, time
period, frequency, and display of wave forms by using CRO. Transducers – definition –
applications – selection, LVDT, Wheat stone bridge, Strain guage, thermo couples,
thermisters, Piezo electric transducers – applications. Function generators, RF
generators, AF generators – construction, applications, power supply, voltage regulation,
shunt voltage regulator, series voltages regulator, zenor voltage regulator – construction,
fixed and variables voltage power supply, DC regulated power supply, SMPS – working,
applications, UPS –ON line UPS, OFF line UPS.
4. DIGITAL ELECTRONICS, OPAMPS, POWER AMPLIFIERS,OSCILLATORS
Number System, concept of bit and byte, convert decimal, hexadecimal to binary
and vice versa, binary addition, subtraction, multiplication and division, logic gates –
symbols and truth table of AND, OR, NOT, NAND, NOR, EXOR gates, Universal
gates, Bollen Algebra, DeMorgans theorem, Half adder – Full addertruth table and
symbols, Subtractor, Encoders and Decoders, Multiplexers and Demultiplexers, flip
flops – JK, SR, T&Dflip flops, Counters – synchronous and asynchronous, Shift
registers –types, A/D converter, D/A converter, Modems, Opamps – working –
characteristics – applications, Schmitt trigger, integrator, differentiator, basic principles
of single stage and multi stage amplifier, power amplifier, direct coupled, RC coupled
amplifier, Class A, Class B, Class C amplifier, feedback (positive and negative)
amplifier,Oscillators, principles of sinusoidal oscillation, Barkhausen criterion, RC
oscillator, crystal oscillator, Hartly oscillators – applications, conditions oscillator,
multivibrators – Astable, mono stable, bitable, basic concept of ICs – merits and
limitations of ICs – applications, Types of ICs – analogue & digital, heat sinks.
5. COMMUNICATIONS, MICRO PROCESSORS, ANTENNAS
Introduction, Elements of communication systems, modulation and
demodulation, need for modulation, amplitude modulation, band width, frequency &
phase modulation, AM receivers, narrow band and wide band FM, FM transmitters and
receivers, PCM, PWM, PPM, Satellite Communication system, antenna – types, dish
antenna, DTH working, applications, Optical Fibre communications, DVD player,
Colour TV, colour mixing, Plasma Television, LCD Television, Mobile TV, Public
Address System, MP3 system, Introduction to microprocessors 8085, PC, SP, ALU,
Control Unit, Micro controller 8051, Ports & other peripheral devices, interfacing of
memory and other devices – RAM, ROM, PROMS, main features of micro processors
and micro controllers, register structure of micro processors.
NOTE: It may be noted that apart from the topics detailed
above, questions from other topics prescribed for the
educational qualification of the post may appear in the
question paper. There is no undertaking that all the topics
above may be covered in the question paper.
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