The frequency of AC voltage in most household circuits is typically what?

In most household circuits, the frequency of AC voltage is typically 60 Hz, which is the standard used in the United States and some other countries. This means that the alternating current oscillates 60 times per second. The choice of frequency is crucial because it impacts the performance of electrical devices and systems.

Using a 60 Hz frequency helps ensure efficient operation of appliances and electrical devices designed for this voltage supply. Many devices, such as motors and transformers, are optimized for this specific frequency, providing efficiency and longevity.

In contrast, 50 Hz is used in many parts of the world, such as in Europe and Asia. Frequencies like 30 Hz and 120 Hz are generally not used in residential circuits, as they can lead to poor performance of devices and higher losses due to electromagnetic interference and other factors. Therefore, 60 Hz is the correct and commonly accepted frequency for household AC voltage in regions that follow this standard.