# Circuit Theory

## Categorization Details

Course Code:

TEE-150
Credit Hours:

4(3-1-2)
Category:

Professional
Pre-requisite:

Nil
Semester:

3
Degree Program:

B.TECH
Branch:

Electrical Engineering ## Course Details

Catalog Description:

Development of circuit concepts, Network equations, Network theorems, D.C. and A.C. (single phase) circuits, Coupled circuits, Resonance, Magnetic circuits, 3-phase balanced A.C. circuits, 3-phase unbalanced A.C. circuits, Symmetrical components, Fourier series, Laplace transforms, electrical transients.
Detailed Syllabus:

Circuit variables, system of units, circuit analysis-An overview. Voltage and current, the ideal basic circuit element, Power and energy, voltage and current sources. Simple resistive circuits; equivalent resistance computation; voltage and current divider circuit; to Y equivalent circuits; Node voltage method, Node voltage method with dependant sources; Mesh current methods without and with dependant sources; source transformation methods.
Network theorems-Thevenin's and Norton equivalents; Maximum power transfer theorem; Superposition theorem; substitution theorem; Compensation theorem; Millmans theorem; Inductors and capacitors- series and parallel combination of Inductors and capacitors; natural response of R-L and R-C circuits; step response of R-L and R-C circuits; sinusoidal Steady state analysis. The concept of phasor, the passive circuit elements in phasor domain, Kirchoff's laws in phasor domain, phasor diagrams; real and reactive power; effective or r.m.s. value of a sinusoidal signal; complex power; impedance and admittances; Power calculations; series and parallel resonance; Bandwidth and quality factor; Balanced three phase circuits analysis; star and delta connected circuits;
Power calculation of three phase circuits; Measurement of average power in three phase circuits. Mutual Inductance, polarity of mutually induced voltages. Energy calculations, Equivalent circuits for magnetically coupled coils, Magnetic circuits, Series and parallel magnetic circuit calculations, Fourier series. Transients and Laplace transform method to solve transients. Concept of symmetrical components.
LECTURE WISE BREAK-UP:
1-4 Circuit variables, system of units, circuit analysis-An overview. Voltage and current, the ideal basic circuit element, Power and energy, voltage and current sources.
5-8 Simple resistive circuits; equivalent resistance computation; voltage and current divider circuit;
9-12 to Y equivalent circuits; Node voltage method, Node voltage method with dependant sources;
13-18 Mesh current methods without and with dependant sources; source transformation methods.
19-23 Network theorems-Thevenin's and Norton equivalents; Maximum power transfer theorem; Superposition theorem; substitution theorem; Compensation theorem; Millmans theorem;
24-29 Inductors and capacitors- series and parallel combination of Inductors and capacitors; natural response of R-L and R-C circuits; step response of R-L and R-C circuits; sinusoidal Steady state analysis.
30-31 The concept of phasor, the passive circuit elements in phasor domain, Kirchoff's laws in phasor domain, phasor diagrams; real and reactive power; effective or r.m.s. value of a sinusoidal signal;
32-34 complex power; impedance and admittances; Power calculations; series and parallel resonance;
35-36 Bandwidth and quality factor; Balanced three phase circuits analysis; star and delta connected circuits
37-39 Power calculation of three phase circuits; Measurement of average power in three phase circuits.
40-42 Mutual Inductance, polarity of mutually induced voltages. Energy calculations, Equivalent circuits for magnetically coupled coils,
43-45 Magnetic circuits, Series and parallel magnetic circuit calculations, Fourier series.
46-48 Transients and Laplace transform method to solve transients. Concept of symmetrical components.
Reference Books:

1. Principle of electrical Engineering by V. Deltoro
2. Circuit Theory by W. Hayt