
CHAPTER OBJECTIVES
• To explain the need for sinusoidal waveforms
and the importance of sinusoidal analysis.
• To explain the concepts of phase, phase
difference, phase lag/lead, phase delay/
advance, time delay/advance etc., in the con-
text of sinusoidal waveforms.
• To introduce instantaneous power, cyclic
average power and average power in
periodic waveforms.
• To define effective value of periodic wave-
forms and illustrate rms calculations with
examples.
• To develop and explain the power superposi-
tion principle and to emphasise the pitfalls in
applying this principle.
• To develop an expression for effective value
of composite periodic waveform and ...