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Angular Frequency of AC voltage

  1. May 20, 2013 #1

    I am wondering, what is the physical interpretation of the angular frequency of AC voltage? I don't see the physicality of what the angle for which there is a frequency?

    I understand that the voltage can switch back and forth at a certain rate, which jives in my mind with the idea of frequency: How quickly the voltage switches back and forth in its magnitude. However, I don't understand what the angular frequency represents?
  2. jcsd
  3. May 20, 2013 #2


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    there is going to be terms like cos(f * t * 2PI) where f is frequency and t is time. So it is just easier to write cos(w * t) where w is the angular frequency.
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