Circuit Theory and Field Theory
||To provide a basic understanding of the laws of circuit theory and the behavior of circuits during steady-state and transient conditions;
To provide a basic understanding of the basic laws of electromagnetic field in the engineering context.
||45 hours of Lectures
15 hours of Assignments/Tutorials
- P. Aaron and W.N. Taberner, "Circuits and Fields", Prentice-Hall.
- Ralph J. Smith: "Circuits, Devices and Systems", Wiley.
- Franco: "Electric Circuits Fundamentals", Sanders.
- R. Yorks: "Electrical Circuit Theory", Pergamon.
- S. Madhu, "Linear Circuit Analysis", Prentice-Hall.
- F.F. Kuo: "Network Analysis and Synthesis", Wiley.
- S. Seeley, "Introduction to Electromagnetic"
- S.V. Marshall and G.G. Skitek, "Electromagnetic Concepts and Applications"
- D.H. Staelin, A.W. Morgenthaler, and Jin-Au Kong, "Electromagnetic Waves"
- H.P. Neff Jr., "Introductory Electromagnetic"
Course Contents (Circuit Theory)
- Circuit Elements and Basis Laws
Electric quantities: charges, voltage, current, power, energy. Voltage and current sources, resistor, inductor and capacitor. Ohm's Law. Kirchoff's current and voltage Laws. Thevenin and Norton
equivalents, superposition, reciprocity, maximum power transfer theorem.
- Signal and Waveforms
Signal waveforms: d.c., step, impulse, square pulse, sinusoidal, triangular, exponential. General description of signals: time constant, rms value, duty cycle, crest factor, form factor.
- Sinusoidal Steady State Analysis
Effective alternating current. a.c. behavior in R, L and C elements. Phasor analysis with complex algebra, Two terminal networks - impedance, admittance and their real and imaginary parts.
Resonance: series and parallel resonance, half power points, bandwidth, Q-factors. Power: instantaneous, average, power factor, active, reactive, complex, apparent.
- Transient Analysis
Analysis of first order LR and RC circuits subjected to excitation of d.c., square pulse, sinusoidal sources and exponential sources. Interpretation of complementary function and particular
integral. Analysis of second order RLC circuit subjected to step input and sinusoidal input.
- Network Analysis
Elementary network topology, network constraints, network equilibrium equations. Nodal and mesh network analysis.
Course Contents (Field Theory)
Field concept. Coulomb's Law, Gauss's Theorem, Polarization, susceptibility, permittivity. Capacitance calculation.
Magnetic dipoles and current loops, Biot-Savart Law and Ampere's Law, Faraday's Law, Self and mutual induction. Inductance calculation.
- Magnetic Circuits
B and H, Magnetic materials, Saturation and hysterisis, Hysterisis loss and eddy current loss, reluctance and permeance, Analysis of linear magnetic circuits (with air-gap problems)
- Single Phase Transformer
Physical principle and construction, Equivalent circuits and calculations, Vector diagram. Voltage regulation under different loading conditions, Efficiency
Laboratory (Circuit Theory)
- Circuit Theorem
To introduce basic theorems whcih are usually used to simplify the circuit for analysis or design.
To understand methods or ways of using these basic theorems through practical in dc circuit or network.
- AC Circuit Analysis (CBT)
To understand and explain the characteristics of resistive-inductive (RL) circuits.
Laboratory (Field Theory)
- Transformer (CBT)
To understand and determine the coil resistance of a transformer.
To demonstrate mutual inductance.
To explain and calculate the turns and voltage ratios of a transformer.
To understand and explain the effect of secondary loading.
Faculty of Engineering
last updated: 5 July 1999