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Pupil
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posted by  Derby on 11/4/2009 7:26:11 PM  |  status: Closed  |  Earned Karma: 55

circuit into resonance

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General Physics N/A N/A N/A 11/5/2009 at 9:00:00 PM
Question Details:
A series RLC circuit has a inductive reactance of 4 Ω and a capacitive reactance of 1/4 Ω.  By what factor should the AC frequency be changed to put this circuit into resonance?
a.  4
b. 1/4
c.  1/2
d.  this circuit cannot be made to achieve resonance
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Oracle
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posted by watt (MNK) on 11/4/2009 7:31:45 PM  |  status: Live
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Response Details:
Inductive reactance  X = Lw = 4 ohm
Capacitive reactance  X ' = 1/ Cw = 1/ 4 ohm
The condition for resonance is  X = X '
But in this problem  X is not equal to X '.So, this circuit cannot be made to achieve resonance
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