Phasor conversion

Discussion in 'Homework Help' started by Marco foschi, Mar 4, 2015.

  1. Marco foschi

    Thread Starter New Member

    Mar 4, 2015
    4
    0
    Find the phasor corresponding to the following signals:

    i(t)= -8 Sin (10t +70°)

    The solution is 8 <160 but I don't know the intermediate steps

    Thanks
     
  2. WBahn

    Moderator

    Mar 31, 2012
    17,743
    4,795
    It looks like the reference for your phasors is cos(ωt), so get i(t) in the form of

    i(t) = Io·cos(ωt + φ)

    where Io≥0 and -180°<φ≤180°.
     
  3. Marco foschi

    Thread Starter New Member

    Mar 4, 2015
    4
    0
    I don't have understood the intermediate steps please detail.... thanks
     
  4. WBahn

    Moderator

    Mar 31, 2012
    17,743
    4,795
    You need to show YOUR best effort to work YOUR homework.

    If I give you

    i(t) = Io·cos(ωt)

    and I want you to express that in terms of sin(ωt), what would it be?
     
  5. shteii01

    AAC Fanatic!

    Feb 19, 2010
    3,387
    497
    Is there a textbook you can read?
     
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