Inductance is the link between electric circuits and magnetic fields. Voltage and current sine waves are in-phase when they peak and cross the zero axis at the same time. However, this rarely happens ...

Before proceeding, however, a very brief look at the physics of an inductor is in order. Imagine for a moment uncoiling an inductor and straightening out the wire. When a steady current ... The top ...

We've all been taught that power factor (PF) is the ratio of real power to apparent power, or the cosine of the phase angle between sinusoidal current and voltage waveforms. When the current isn't ...