Lesson: Types of Electric Current Science • Third Year of Preparatory School

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In this lesson, we will learn what the main types of electric current are and what sources produce them.

Students will be able to

know that chemical batteries produce direct current,
know that dynamos produce alternating current,
know that direct current is a constant current in one direction,
know that alternating current is a current that periodically reverses direction,
determine whether a current is direct or alternating based on a graph of the current.