Active filter problems: #1. The circuit below is called an equal component-value KRC filter. (a) Show that the voltage gain as a function of frequency for this circuit is given by where (b) Demonstrate with simple arguments, based on the behavior of at certain key frequencies, that this circuit acts a high-pass filter. Using this circuit, design a high-pass filter with and Q variable over the range by means of a 100-k2 potentiometer. (a) For the two limiting values of Q, 0.5 and 5, what does the frequency response look like, from DC to 100 kHz? A rough drawing will suffice Vout M741 vin (V