EEE 159 (Fundamentals of Electrical Engineering)

Text Books

Class Test Questions and Solutions

1) Class Test 1

Question Paper

Solution

2) Class Test 2

Question Paper

Solution

3) Class Test 3

Question Paper

Solution

4) Class Test 4

Question Paper

Solution

Marks of Class Test

Download Marks of CT 1,2,3

Syllabus

DC Circuit

Laws of electric circuit: Ohm's law, Kirchhoffs voltage and current laws, delta-wye transformation. Electrical networks: network analysis-methods of branch and loop currents, method of node-pair voltages, Thevenin's and Norton's theorems. magnetic concepts and units: magnetic field, righthand rule, magnetic flux density, magnetic field intensity, measurement of magnetic flux, energy of magnetic field. Characteristics of ferromagnetic materials theory of ferromagnetism. B.H. curves, hysteresis loss. Introduction to magnetic circuit. Electromagnetic forces: forces upon a current-carrying conductor and charged particle moving in a magnetic field.

AC Circuit

Theory

Deriving Relation between frequency of voltage/current to that of power (power frequency is twice voltage frequency)

Deriving Equation of Impedance in an RLC circuit.

Deriving Relation between Effective and Average values of a sinusoidal signal.

Deriving Equation for Real power, Reactive power, Total power, Power Factor etc.

When do we use RMS value and when average value for a sinusoid ?

Drawing sinusoidal voltage/current, real power, reactive power, total power on the same graph.

Deriving condition for resonance in a series RLC circuit

Learning Maximum Power Transfer Theorem for an AC circuit.

About Three Phase Circuit

Why Three phase circuit is advantageous over single phase circuit, why we choose three phase other than four or more phase circuit

Prove that, in a balanced three phase Y-connected circuit, no current flows through the neutral wire.

Deduce the relation between line voltage/current and phase voltage/current in a balanced Y/Delta circuit.

Prove that, in a balanced three phase circuit, total power delivered to a three phase load does not vary with time.

Show that, the total power of a three phase balanced circuit can be measured by two wattmeters.

Why, to measure the total power in a balanced 3 phase circuit, instead of using only one watt-meter and subsequent multiplication of wattmeter-reading by 3, we opt for using two wattmeters?

Coverage of AC circuit syllabus

General concepts and definitions. Instantaneous current and power, R-,L-, C-, RL- and RLC- branches.

Effective current and voltage: average values, form factor, crest factor, power real and reactive.

Impedances in polar and cartesian forms.

Sinusoidal single phase circuit analysis.

Impedance in series, parallel branches, series-parallel circuits.

Series Circuit Resonance.

Phasor Diagram.

Network analysis- by mesh or node method.

Balanced Three phase circuits, power in balanced systems, power factor.

Term Final Question Format

Two sections will be there.

• Section A will cover DC circuit and Magnetic Circuit.

• Section B will cover AC circuit including Balanced Three phase Circuit

Each of the Section will contain 4 sets of questions. You have to choose any three of the 4 sets to answer.

Each set of Question may comprise of multiple part, i.e. - part (a), (b), (c) etc. A question may be blended with theory, derivation of Equations, answering Short Questions, Explanation and mathematical problem.

Consult with the term final questions of previous years.

Also consult with your classnotes thoroughly.