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SYLLABUS

UNIT-I

ELECTRICAL CIRCUITS Basic definitions – Types of network elements – Ohm’s Law – Kirchhoff’s Laws – Inductive networks – Capacitive networks – Series – Parallel circuits – Star-delta and delta-star transformations – Numerical problems.

UNIT-II

D.C MACHINES Principle of operation of D.C generator – EMF equation – Types of D.C machines – Torque equation characteristics of D.C motors – Applications – Three point starter – Speed control methods of D.C motor – Swinburne’s Test-Brake test on D.C shunt motor – Numerical problems.

UNIT-III

A.C MACHINES TRANSFORMERS Principle of operation and construction of single phase transformers – EMF equation – Losses – O.C & S.C tests – Efficiency and regulation – Numerical problems. A.C ROTATING MACHINES Principle of operation and construction of alternators – Types of alternators regulation of alternator by synchronous impedance method – Principle of operation of synchronous motor – Principle of operation of 3-phase induction motor – Slip-torque characteristics – Efficiency – Applications – Numerical problems.

UNIT-IV

RECTIFIERS AND LINEAR ICs PN junction diodes – Diode applications (half wave and bridge rectifiers). Characteristics of operation amplifiers (OP-AMP) – Application of OP-AMPs (inverting, non-inverting, integrator and differentiator) – Numerical problems.

UNIT-V

TRANSISTORS PNP and NPN junction transistor, Transistor as an amplifier – Frequency response of CE amplifier – Basic concepts of feedback amplifier – Numerical problems.