Alternating and Direct Current | Electricity | Physics | FuseSchool

The video explains the differences between alternating current (AC) and direct current (DC), highlighting how each type of current flows and their respective uses. DC flows in one direction, typically from a battery, while AC changes direction, as seen in mains power supplies. The video also discusses the role of transformers in adjusting AC voltage and the importance of AC in the national grid. Additionally, it covers how to interpret oscilloscope traces for both AC and DC, including calculating frequency and potential difference.

How does the flow of electrons in a direct current differ from the conventional flow of current?

What is the main difference between alternating current (AC) and direct current (DC)?

What is frequency in the context of alternating current, and how is it measured?

Explain why the main power supply is typically an alternating current.

Describe how an oscilloscope can be used to interpret the traces of AC and DC.