ELCT 401

2 lecture hours
2 exercise hours
2 practical hours
6  ECTS credits


  • The course constitutes an important building block for all electrical engineers and it is the logic continuation of Electric Circuit I. The course starts with the application of the tools gained in Electric Circuits I to investigate the performance of electric circuits comprising operational amplifiers. The course then moves to cover the techniques employed to analyze electric circuit supplied from sinusoidal source(s). These techniques are then applied to calculate the electric power in both single phase and three phase circuits. Finally, Laplace’s Transform is introduced in this course as a general approach to analyze electric circuits in both time domain and frequency domain and applications of this transform are also


    • The Operational Amplifiers [2 lectures]
    • Sinusoidal Steady State analysis (A.C. analysis) [3 lectures]
    • Power Calculations in A.C. Circuits [1&1/2 lectures]
    • Balanced three-phase circuits. [2&1/2 lectures]
    • Frequency Selective Circuits [2 lectures]


  •  Upon successful completion of this course, the student should be able to:

    • Calculate the output of electric circuits containing ideal operational amplifiers.
    • Apply frequency domain analysis technique to solve Alternating Current (A.C.) circuits.
    • factor for single phase circuits.
    • Calculate the complex power, the active power, the reactive power and the power
    • Write the equations that govern the operation of three-phase balanced circuits.
    • Apply the Laplace Transform to identify the features of frequency selective circuits.