Elements of Electrical Engineering

1.Magnetic circuits: Definitions of magnetic circuit, Reluctance, Magneto-motive force),
magnetic flux, Simple problems on magnetic circuits, Hysterisis loss.
2.Electromagnetic Induction : Faraday’s laws of Electromagnetic Induction, Induced
E.M.F., Dynamically induced E.M.F., Statistically induced EMF, Self Inductance,
Mutual Inductance.
3.D.C. Generators: D.C.Generator principle, construction of D.C. generator, E.M.F
equation of D.C. generator, Types of D.C. generator, Efficiency, Characteristics of D.C.
generator, Efficiency, Applications of D.C. generator
4.D.C. Motors: D.C. Motor principle, working of D.C.Motors. significance of back E.M.F.,
Torque equation of D.C. Motors, Types of D.C. Motors, Characteristics of D.C. Motors,
Speed control methods of D.C. Motors, Applications of D.C. Motor. Testing of D.C.
5.Machines : Losses and Efficiency, Direct load test and Swinburne’s test.
6.A.C. Circuits: Introduction to Steady State Analysis of A.C. Circuits, Single and
Balanced 3 Phase Circuits.
7.Transformers: Transformer principle, EMF equation of transformer, Transformer on load,
Equivalent circuit of Transformer, Voltage regulation of Transformer, Losses in a
Transformer, Calculation of Efficiency and Regulation by Open circuit and Short circuit
Tests.
8.Three phase Inductance Motor: Induction Motor working principle. Construction of 3
Phase induction Motor, Principle of operation. Types of 3 phase induction Motor.,
Torque Equation of Induction Motor., slip – Torque characteristics., Starting Torque,
Torque under running condition., Maximum Torque Equation., Power stages of Induction
Motor., Efficiency Calculation of Induction Motor by direct loading.
9.Alternator: Alternator working principle, EMF equation of Alternator, Voltage
Regulation by Sync. Impedance method.
10.Synchronous Motor: Synchronous Motor principle of Operation, Construction., Methods of
starting of synchronous motor.

Electronics-1

Electronics-I
Syllabus:
I. Semiconductors :
Electronic Emission from metal carrier concentration in an intrinsic
Semiconductors open circuited PN junction – diffusion.
II. PN Junction Diode :
PN Junction Diode, VI Characteristics of PN Junction Diode, capacitate effects in
PN Junction Diode, Quantitative theory of PN Junction Diode.
III. Special Devices:
Principles, Working of zero diode, Tunnel diode, Varactor diode, Schottky diode, SCR
and UJT.
IV. Transistors:
The bipolar junction Transistor – Operation of PNP and NPN Transistors –
Transistor Circuit configurations- characteristics of a CE configurations – h
parameter, low frequency small signal equivalent circuit of a Transistor.
V. Transistor Biasing and thermal stabilization:
Transistor Biasing, stabilization, Different methods of transistor biasing – Fixed bias,
Collector feedback bias – self bias – Bias compensation.
VI. Field Effect Transistors:
Junction Field Effect Transistors (JFET) – JFET characteristics, JFET Parameters,
Small equivalent circuit – MOSFETS – Depletion and Enhancement MOSFETS.
VII. Rectifying circuits:
Half wave and full wave rectifiers – Bridge rectifiers – rectifier efficiency, Ripple and
regulation – Shunt capacitor filter – Zener regulation.
VIII. Transistor Amplifiers:
CE, CB, CC amplifier configurations – Analysis using h- parameters – Multistage
amplifier – RC coupled amplifier – frequency response curve and bandwidth.

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