What does this notation stand for?

Discussion in 'Homework Help' started by magodiafano, Feb 12, 2011.

  1. magodiafano

    Thread Starter New Member

    Feb 12, 2011
    The professor gave me this exercise, but since I am new in this subject I did not understand what he wants.

    "In a single phase circuit Va=120 amplitude and 45degree as phase (written in polar form) and Vb = 100 amplitude and -15 phase.
    Find Vba in polar form."

    Does it mean that I have to do Vb-Va? or am I wrong?
  2. thatoneguy

    AAC Fanatic!

    Feb 19, 2009
    Did the prof use \theta for "polar form you've written out above", or is he trying to get you to understand the difference between rectangular format (a±bi) and polar format a \theta \phi
  3. shteii01

    AAC Fanatic!

    Feb 19, 2010
    I think you are right. I would interpret that as Vb-Va.