Electric Circuits and Networks

Electric circuits and networks is the fundamental and essential subject for circuit branches in engineering. The book introduces the concepts of single-phase ac circuits and its analysis, generation of the three-phase power supply, star/delta connected three-phase systems operating under balanced and unbalanced loading conditions. Transient response of first and seconder order electric circuits are included in time domain analysis as well as in LaPlace analysis. Two port network parameters and relationship among those parameters are explained. At the end all the chapters, problems are solved using LTspice software for the purpose of practical classes. The major areas covered in this book are

• Phasor and its representation
• Steady state analysis of single-phase ac circuits
• Power and power factor calculations for single-phase ac circuits
• Resonance in series and parallel circuits
• Source transformation
• Single-phase ac circuits analysis: Node analysis and mesh analysis
• Single-phase ac circuits theorems: Thevenin/Norton/Maximum power transfer
• Duality of the electric circuits
• Voltage and current relations for star/Delta connected three-phase systems
• Power and power factor calculations for three-phase ac systems
• Transient response of ac circuits of first and second order ac circuits
• Laplace transform solution of first and second order ac circuits
• Graph theory concepts of electric circuits
• Tie-set analysis and cut-set analysis of electric circuits
• Two-port networks and parameters