Final answer:
Alternating current is the type of current in which charges continually switch from flowing in one direction to flowing in the reverse direction.
Step-by-step explanation:
Alternating current is the type of current in which charges continually switch from flowing in one direction to flowing in the reverse direction. It is characterized by voltage that constantly changes in magnitude and direction. This type of current is commonly used in household electrical systems and is represented by a sinusoidal waveform.
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