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Is 5V AC or DC?

in Electrical Engineering

Is 5V AC or DC?

1 Answer

5V can be either AC (Alternating Current) or DC (Direct Current), but it depends on how it's being supplied.

- **5V DC (Direct Current)** is a constant voltage where the flow of electricity moves in one direction. It is commonly used in devices like USB chargers, electronics, and batteries.

- **5V AC (Alternating Current)** would be an AC voltage that oscillates between positive and negative values, typically seen in mains electricity (like household power). However, 5V AC is much less common, as standard AC voltage is usually much higher (like 120V or 240V in most homes).

In most cases, when you see "5V," it’s typically referring to **5V DC**, especially for electronics and small devices.

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