ET-124                                    Linear Circuit Analysis                        4(3+1)

Theory Cr. Hrs.: 3
Lab Cr. Hrs.: 1

Objective: To enable students to understand electric circuits and learn basic circuit solving skills
Course Outline:
Electrical Elements and Circuits: Resistance, inductance, and capacitance, laws of resistance, Ohm‟s law, Kirchoff‟s laws, DC node voltage and loop current methods of analysis of resistive network calculations, current and voltage divider
Network Theorem: Superposition, Thevenin, Norton, reciprocity and maximum power transfer theorems
A.C. Fundamentals: Periodic function, RMS, effective, average and maximum values of current and voltage for periodic wave forms, study of simple circuits using instantaneous values of current and voltages, introduction to three phase system.
Phasor Quantities: Phasors; representation of phasors by „J‟ notation, complex expression for current, voltage and impedance, solution of simple RL, RC and RLC series and parallel circuits. Resonance in series and parallel RLC circuits.

List of Practicals:

1. Demonstration of Ohm‟s law, Kirchoff‟s voltage and current laws

2. Demonstration of Superposition, Thevenin and Norton theorems with DC sources

3. Study of phase displacement using oscilloscope

4. Draw phasor diagrams for RL, RC and RLC circuits

5. Determine power factor for inductive and capacitive loads

6. Calculation and demonstration of RMS, average and peak values of a periodic waveform using signal generator and oscilloscope

7. Determine active and reactive power for single phase circuits

8. Determine active and reactive power for three phase circuits

9. Demonstration of series and parallel resonance in R, L and C circuits

Recommended Books:

1. Hughs, “Electrical Technology”

2. Floyd, “Circuit Analysis”

3. W. Hayt, “Engineering of Circuit Analysis”