The voltage of AC (alternating current) depends on the region and its power distribution standards. Here are a couple of common examples:
- **In North America (USA, Canada)**: The standard AC voltage is **120 volts** with a frequency of **60 Hz**.
- **In Europe and many other countries**: The standard AC voltage is **230 volts** with a frequency of **50 Hz**.
Do you have a specific type of AC voltage or application you're asking about? That might help narrow it down further!