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Is 120 volts AC or DC?

in Electrical Engineering

Is 120 volts AC or DC?

1 Answer

120 volts is **AC** (alternating current).

In many countries, including the United States, the standard household voltage is 120 V AC. This means the current alternates direction periodically, typically at a frequency of 60 Hz (cycles per second).

In contrast, **DC** (direct current) flows in one direction only, like what you find in batteries.

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