Current that does not have a constant voltage or constant polarity is

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Multiple Choice

Current that does not have a constant voltage or constant polarity is

Explanation:
This describes alternating current. The defining feature of AC is that both the voltage and the direction of current reverse over time, so there is no constant polarity or constant voltage. In contrast, direct current keeps the same direction and roughly the same polarity, pulsating current changes magnitude but not direction, and static implies no change at all. Household power is a common example of alternating current.

This describes alternating current. The defining feature of AC is that both the voltage and the direction of current reverse over time, so there is no constant polarity or constant voltage. In contrast, direct current keeps the same direction and roughly the same polarity, pulsating current changes magnitude but not direction, and static implies no change at all. Household power is a common example of alternating current.

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