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The impedance of a line is zero when ___________(a) It acts as inductor(b) It acts as capacitor(c) It acts as a resistor(d) Series resonant circuit |
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Answer» The correct choice is (d) Series resonant circuit Easy explanation: If the line acts as a series resonant circuit, its impedance is zero. If the line is of such a length that it acts as a parallel resonant circuit, its impedance is near infinity. If the line is some intermediate length, it is reactive. |
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