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10 Cards in this Set
- Front
- Back
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In an a.c. circuit that contains both an inductor and a capacitor, what term is used for the difference between the individual reactances?
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Resultant reactance.
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If the inductor and capacitor values are increased, what happens to the resonant frequency?
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Decreases.
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In an "ideal" resonant circuit, what is the relationship between impedance and current?
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Impedance low Current high
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When the capacitor is completely discharged, where is the energy of the tank circuit stored?
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Inductor magnetic field.
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When the magnetic field of the inductor is completely collapsed, where is the energy of the tank circuit stored?
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Capacitor.
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In a parallel-resonant circuit, what is the relationship between impedance and current?
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Maximum impedance, minimum current
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When is line current minimum in a parallel-LC circuit?
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At the resonant frequency.
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What are the four general types of filters?
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Low-pass,High-pass,Bandpass, band-reject
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What is the filter called in which the low frequencies do not produce a useful voltage?
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High-pass filter, low-frequency discriminator, or low-frequency attenuator
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What type filter is used to allow a narrow band of frequencies to pass through a circuit and attenuate all other frequencies above or below the desired band?
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Bandpass
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