I have a signal filter designed using an LCR network and a large resistor (100kOhm)...put together in the form of a potential divider....R1 = 100k and R2=|Z| of LCR network. At the selected frequency the LCR network impedance resonates.....and hence an input signal is passed through the filter. At other frequencies, the input signal is lost over the large R1 resistor.
but what i am confused about is where the question asks "why would a small resistor, say, 1k, degrade the performance of the filter....remembering the positive and negative going transients and the effect of damping on resonance."
the positive and negative going transients are whent he input is a square wave, the positive going edge is heavily damped by the large resistor, whereas the negative going edge is not damped at all by the large resistor. So what i dont get is how that is relevant. What is the question asking? why isnt a small resistor suitable?