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Homework Help: Pure circuit

  1. Apr 16, 2010 #1
    My book saya that in a pure circuit , the phase difference between the voltage and current must be pi/2 , otherwise it is not pure . Why it is so ? What is a pure circuit by the way ?
  2. jcsd
  3. Apr 16, 2010 #2
    It means a circuit with only capacitance or only inductance and no resistance.
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