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Is a fan AC or DC?

in Electrical Engineering

Is a fan AC or DC?

1 Answer

A fan can be either AC (Alternating Current) or DC (Direct Current), depending on its design and the type of power it uses.

1. **AC Fans:**
   - These fans are powered by **AC (Alternating Current)**, which is the type of electricity that comes from wall outlets in most homes.
   - AC fans are commonly used in household appliances, ceiling fans, and larger industrial fans.
   - They are generally simpler and cheaper to make.

2. **DC Fans:**
   - These fans run on **DC (Direct Current)**, which is a constant flow of electricity in one direction.
   - DC fans are often used in smaller devices, like computer fans or portable fans, and are usually more energy-efficient.
   - Many modern fans (like those in laptops or battery-powered fans) use DC motors because they can run on batteries and are often quieter and more efficient than AC motors.

In short: Most fans you see in homes or offices are **AC**, but smaller, battery-operated or energy-efficient fans are typically **DC**.

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