Examine the distortion effect of an RC low-pass filter. Assume that a unity-amplitude periodic square wave with a 50% duty cycle is present at the filter input and that the filter has a 3-dB bandwidth of 1,500 Hz. Using a computer, find and plot the output waveshape if the square wave has a frequency of
(a) 300 Hz.
(b) 500 Hz.
(c) 1,000 Hz