An inductive coil generates a self-induced electromotive force (emf) opposing the initial emf in response to an AC supply. This phenomenon, termed inductive reactance, imposes limitations on the flow of time-varying current in the circuit. Inductors and Energy Storage Inductors, also known as chokes, are coils wound around air or ferromagnetic material to enhance their […]
Calculating Phase Shift and Phase Difference
In this post we comprehensively discuss how to calculate and solve phase shift and phase difference in AC sinusoidal waveforms, using appropriate formulas. What are Phasors? Phasors analyze AC circuit behavior when frequencies are the same. Combining phasors depends on their relative phase. Sinusoidal waveforms reach max values at π/2 and 3π/2, and zero values […]
How to Calculate Sinusoidal Waveforms
In this post we comprehensively discuss sinusoidal waveforms and learn how to calculate the involved specifications and parameters. What are Sinusoidal Waves? Basically, sinusoidal waveforms are periodic waveforms whose shape can be plotted using the sine or cosine function of trigonometry. We commonly refer to electrical circuits supplied by sinusoidal waveforms as “AC” voltages and […]
Calculating Phasors and Complex Numbers
Phasors are complex numbers which are used to represent the magnitude and phase angle of sinusoidal waveforms in AC circuits. When you are working with frequency-dependent sinusoidal sources and vectors in electrical engineering, real numbers alone are insufficient. The introduction of Complex Numbers which include imaginary numbers denoted by the “j” operator, addresses the need […]
Calculating Phasor Diagrams and Phasor Algebra?
The phase connection between voltages and currents in a circuit is shown graphically in phasor diagrams. They make use of a reference phasor and a coordinate system. An angular difference, or phase difference, can exist between sinusoidal waveforms of the same frequency. This connection may be described using terms like “lead,” “lag,” “in-phase,” and “out-of-phase”. […]
How to Calculate an AC Waveform
In this post we discuss AC waveform circuit theory and various formulas to calculate AC waveform. Difference Between AC Waveform and DC Waveform The sinusoidal, or sine, wave, is the most often used AC waveform in circuit theory. The term “waveform period” refers to the regular intervals at which an EMF with reversed polarity is […]