The main advantage of AC (alternating current) over DC (direct current) is its ability to be easily transformed to different voltage levels.
This is crucial for efficient power transmission over long distances.
When electricity is generated at power plants, it is typically at a relatively low voltage.
To transmit this electricity over long distances with minimal energy loss, the voltage is stepped up to very high levels using transformers.
At the destination, the voltage is then stepped down to a safe and usable level for homes and businesses.
DC, on the other hand, cannot be easily transformed using conventional methods. This makes AC the preferred choice for power grids worldwide.
Here are some additional advantages of AC:
- Lower transmission losses: AC can be transmitted at higher voltages, which reduces energy loss during transmission.
- Easier generation: AC generators are simpler and more efficient than DC generators.
- Compatibility with motors: AC motors are widely used in various applications, including industrial equipment and household appliances.
