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What is Electrical Polarity?Electrical Polarity DefinitionElectrical polarity is defined as the state of a body or system relative to another, indicating whether it has positive or negative polarity.Importance of PolarityPolarity is crucial for connecting devices like meters, machines, and batteries correctly.Current Flow DirectionIn a DC circuit, current flows in one direction—from negative to positive polarity—while in an AC circuit, current changes direction every half cycle.DC CircuitAC Circ

Now consider an AC circuit with two voltage sources. Here, magnitude, polarity, and phase angle are used to find the equivalent voltage. Electrical Polarity in AC Voltages In the first figure, both sources have the same polarity. Hence, the equivalent voltage is the addition of both. But these are the polar form—First, we need to convert this polar form into a rectangular form. And it will be—Now, the equivalent voltage is the addition of each of the X-components and Y-components (i.e. )—Ag