BE3251 Basic Electrical and Electronics Engineering

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Important questions
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UNIT -1

1. Mesh,nodal prob and full topic

2.Average value, RMS Value, Instantaneous power, real power, reactive power and apparent power problem may be part C and 2 marks also expected frm this

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3. Steady state analysis of RLC

UNIT-2

1.Construction, Working principle and Applications of (Transformer,DC motors)

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2.3 phase induction motor

UNIT-3

1.JFET, SCR, MOSFET,IGBT

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2. PN Junction Diodes, Zener Diode ,Characteristics Applications may be part c

UNIT-4

1. minimization using K maps (Simple Problems only)

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2. SOP and POS forms

UNIT-5

1.Measurement of three phase power, Energy Meter, Instrument Transformers

2.CT and PT, DSO,Data acquisition

**Very important questions are bolded and may be asked based on this topic

PART-C

1.Compulsory Questions {a case study where the student will have to read and analyse the subject }

mostly asked from unit (OR) a Problem given

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SYllabuS

UNIT I ELECTRICAL CIRCUITS

DC Circuits: Circuit Components: Conductor, Resistor, Inductor, Capacitor – Ohm’s Law - Kirchhoff’s Laws –Independent and Dependent Sources – Simple problems- Nodal Analysis, Mesh analysis with Independent sources only (Steady state)

Introduction to AC Circuits and Parameters: Waveforms, Average value, RMS Value, Instantaneous power, real power, reactive power and apparent power, power factor – Steady state analysis of RLC circuits (Simple problems only)

UNIT II ELECTRICAL MACHINES

Construction and Working principle- DC Separately and Self excited Generators, EMF equation, Types and Applications. Working Principle of DC motors, Torque Equation, Types and Applications. Construction, Working principle and Applications of Transformer, Three phase Alternator, Synchronous motor and Three Phase Induction Motor.

UNIT III ANALOG ELECTRONICS

Resistor, Inductor and Capacitor in Electronic Circuits- Semiconductor Materials: Silicon &Germanium – PN Junction Diodes, Zener Diode –Characteristics Applications – Bipolar Junction Transistor-Biasing, JFET, SCR, MOSFET,IGBT – Types, I-V Characteristics and Applications, Rectifier and InvertersUNIT IV DIGITAL ELECTRONICS

Review of number systems, binary codes, error detection and correction codes, Combinational logic - representation of logic functions-SOP and POS forms, K-map representations - minimization using K maps (Simple Problems only)

UNIT V MEASUREMENTS AND INSTRUMENTATION

Functional elements of an instrument, Standards and calibration, Operating Principle, types -Moving Coil and Moving Iron meters, Measurement of three phase power, Energy Meter, Instrument Transformers-CT and PT, DSO- Block diagram- Data acquisition.

BE3251 Basic Electrical and Electronics Engineering