Figure P2.86 exhibitions a circumference that performs a low-pass STC character. Such a circumference is notorious as a first-order, low-pass erratic percolate. Derive the sell character and exhibition that the dc execute is (-R2/R1) and the 3-dB abundance wo=1/CR2. Design the circumference to shape an input opposition of 10kOhms, a dc execute of 40 dB, and a 3-dB abundance of 1kHz. At what abundance does the heap of the sell character subject to indivisibility? You should do this individual using the “virtual ground” technique to sustain the segregation unsophisticated. Please assume the abundance exculpation of the circumference in PSPICE and understand an annotated graph and transcribe some observations encircling it.