What is the defining characteristic of an alternating current?
It changes voltage periodically.
It changes magnitude periodically.
It has a constant direction periodically.
It changes direction periodically.
Flashcards for Edexcel AS Level Physics Alternating currents and rms values, covering the key terms and definitions you need to recall. 20 cards, matched to the Edexcel AS Level Physics (8PH0) specification.
