What is direct current (DC)?

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Multiple Choice

What is direct current (DC)?

Direct current means charges move predominantly in one direction, with the polarity staying constant over time. In a DC circuit, electrons drift through the conductor in a single direction (while conventional current is opposite to electron flow). This is what you get from a battery or a DC power supply. Unlike alternating current, where the direction of flow reverses periodically, DC maintains that steady, unidirectional flow. That unidirectional, single-direction flow is why the statement describing electrons moving in only one direction best defines direct current.

Direct current means charges move predominantly in one direction, with the polarity staying constant over time. In a DC circuit, electrons drift through the conductor in a single direction (while conventional current is opposite to electron flow). This is what you get from a battery or a DC power supply. Unlike alternating current, where the direction of flow reverses periodically, DC maintains that steady, unidirectional flow. That unidirectional, single-direction flow is why the statement describing electrons moving in only one direction best defines direct current.

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