A band-pass filter preferentially transmits signals within a range of frequencies and attenuates sufficiently lower and higher frequencies. Taking the output voltage across the resistor in a series RLC circuit gives one example: the resonant series RLC response selects a band around . [ref]
https://www.feynmanlectures.caltech.edu/II_22.html#Ch22-S7. Feynman lectures, II.22.7: resonant frequency filters
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