Lesson: Alternating Current
In this lesson, we will learn how to identify alternating currents and calculate the properties of alternating currents.
Sample Question Videos
Worksheet: 9 Questions • 3 Videos
Which of the following statements correctly describes what is meant by the term “alternating current”?
The graph shows the current through a resistor over time.
At what time on the graph does the current change direction?
The graph shows the current through an incandescent bulb over time.
How much time passes between each time the current changes direction?