B.E. I Sem (All Branches)

I SEMESTER

105. ELECTRICAL AND ELECTRONICS ENGINEERING

UNITS CONTENT
I

DC Networks: Kirchoff’s Laws, Node Voltage and Mesh Current Analysis; Delta-Star and Star-Delta Transformation, Source Conversion. Classification of Network Elements, Superposition Theorem, Thevenin’s Theorem.

II

Single Phase AC Circuits: Generation of Single Phase AC Voltage, EMF Equation, Average, RMS and Effective Values. RLC Series, Parallel and Series- Parallel Circuits, Complex Representation of Impedances. Phasor Diagram, Power and Power Factor.Three Phase A.C. Circuits: Generation of Three-Phase AC Voltage, Delta and Star-Connection, Line & Phase Quantities, 3-Phase Balanced Circuits, Phasor Diagram, Measurement of Power in Three Phase Balanced Circuits.

III

Transformer: Faraday’s Law of Electromagnetic Induction, Construction and Operation of Single Phase Transformer, EMF Equation, Voltage & Current Relationship and Phasor Diagram of Ideal Transformer.
Electrical DC Machine: Principle of DC Machines, Types, Different Parts of DC Machines.

IV

Transistor: Bipolar Junction Transistor, Transistor Current Components, Characteristics of CE, CB and CC Transistor Amplifiers. Thyristors: The four layer diode, Bi-directional thyristors, the uni-junctiontransistor and its application in thyristor circuits.

V

Communication System: Introduction to modulation (AM, FM & PM) demodulation, multiplexing. Superhetrodyne radio receiver, television. Elementary concepts of optical, satellite & mobile communication.