Question

Which device work on DC only?

Answer 1

Devices that work on DC (Direct Current) only typically rely on a steady flow of electrical charge in one direction. Here are some examples of devices that work on DC only:

1. **Batteries** – All types of batteries, including AA, AAA, and car batteries, provide DC power.

2. **LEDs (Light Emitting Diodes)** – LEDs are designed to operate on DC voltage.

3. **Electric Motors** – Some small electric motors, especially those in toys, fans, and certain appliances, are powered by DC.

4. **Solar Panels** – The output from solar panels is DC, and it needs to be converted into AC if you want to use it for appliances that run on alternating current.

5. **Electronic Circuits** – Many small electronic devices like calculators, phones, and laptops use DC power either from batteries or power supplies.

6. **DC Power Supplies** – These provide a constant DC voltage to power electronic devices and circuits.

7. **Chargers** – Chargers for devices like smartphones, laptops, and electric cars often work on DC output after converting AC from a wall outlet.

DC is mainly used in applications where a steady and stable power source is required.