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Do phones use AC or DC?

in Electrical Engineering

Do phones use AC or DC?

1 Answer

Phones use **DC** (Direct Current) to operate. Here's why:

- **Battery**: Phones are powered by rechargeable batteries, and these batteries supply DC power.
- **Charging**: When you plug in your phone to charge, the charger converts the AC (Alternating Current) from your wall outlet into DC to charge the phone's battery.
- **Internal Circuits**: Once the phone is on, all the internal circuits (like the processor, display, and sensors) use DC power to work properly.

So, while the wall outlet provides AC, the phone itself runs on DC.

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