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Pupil
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posted by  Derby on 11/4/2009 7:22:09 PM  |  status: Closed  |  Earned Karma: 55

phase angle

Course Textbook Chapter Problem Needs by
General Physics N/A N/A N/A 11/5/2009 at 9:00:00 PM
Question Details:
In an RLC series circuit the phase angle between the current and voltages is 30 degrees.  If the AC frequency doubles, what is the resulting phase angle?
a.  30 degrees
b.  more than 30 degrees
c.  less than 30 degrees
d.  additional information is needed to reach a determination
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Oracle
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posted by watt (MNK) on 11/4/2009 7:27:05 PM  |  status: Live
Asker's Rating: Lifesaver   
Response Details:
If phase angle between current and voltage  is  θ  then
  tan θ = [L w -( 1/ Cw ) ] / R
phase angle depends on inductance  L and capacitance  C also
So, answer is additional information is needed to reach a determination        
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