Reduce the frequency of a signal generator to approximately 1/n of the filter resonant frequency, where n is an integer. What happens to the amplitude of the signal at the filter output as the frequency is reduced? How are the measured frequencies of these peaks related to the resonant frequency of the filter? What are the relative amplitudes of each of the peaks compared to the original square wave signal? Write down the exponential Fourier series for a square wave. Do the relative values of the coefficients agree with your measured values?