However, when we begin to analyze alternating current circuits, we find that quantities of voltage,
current, and even resistance (called impedance in AC) are not the familiar one-dimensional quantities
we’re used to measuring in DC circuits. Rather, these quantities, because they’re dynamic
(alternating in direction and amplitude), possess other dimensions that must be taken into account.
Frequency and phase shift are two of these dimensions that come into play. Even with relatively
simple AC circuits, where we’re only dealing with a single frequency, we still have the dimension of
phase shift to contend with in addition to the amplitude.
However, when we begin to analyze alternating current circuits, we find that quantities of voltage,current, and even resistance (called impedance in AC) are not the familiar one-dimensional quantitieswe’re used to measuring in DC circuits. Rather, these quantities, because they’re dynamic(alternating in direction and amplitude), possess other dimensions that must be taken into account.Frequency and phase shift are two of these dimensions that come into play. Even with relativelysimple AC circuits, where we’re only dealing with a single frequency, we still have the dimension ofphase shift to contend with in addition to the amplitude.
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