Ch 13 RLC Circuits and Resonance

selectivity

a measure of how effectively a resonant circuit passes certain frequencies and rejects others

band-pass filter

a resonant circuit that passes a range of frequencies between two cutoff points

band-stop filter

a resonant circuit that rejects a range of frequencies between two cutoff points

decibel

a unit of logarithmic expression 10 times the logarithm of the ratio of two powers

parallel resonance

in a parallel RLC circuit, the condition where the impedance is maximum and the reactances are equal

series resonance

in a series RLC circuit, the condition where the impedance is minimum and the reactances are equal

resonant frequency

the frequency at which a resonant condition occurs in a series or parallel RLC circuit

half-power frequency

the frequency at which the output power of a filter is 50% of the maximum

cutoff frequency

the frequency at which the output voltage of a filter is 70.7% of the maximum output voltage