Lesson: Alternating Current Physics • 9th Grade

In this lesson, we will learn how to identify alternating currents and calculate the properties of alternating currents.

Lesson Video

Q1:

Which of the following statements correctly describes what is meant by the term “alternating current”?

Q2:

The graph shows the current in a wire over time.

What is the peak value of the current?

Q3:

The graph shows a current in a wire over time.

What is the period of the current?