Lesson: Chapter 13 — Electromagnetism and electromagnetic induction

Direct and alternating current 1 of 4 Reset answers

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Question 1

What is a direct current?

A A current from a dynamo B A very large current C A current that stays the same size D A current whose direction does not change with time

The right answer is the one marked above.

A current whose direction does not change with time. Its size may vary; its direction does not.

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