3. Alternating current (AC) design: Assume that the collector load is Rc. Assume that the tank circuit impedance is too large to produce any noticeable loading on the amplifier stage. Also, assume that the amplifier input impedance, reflected back through the tank circuit, does not produce any appreciable loading on the amplifier stage. a. Determine Av of the amplifier stage using the values of R1, R2, and R3 determined in the DC design. Use the equations given below to approximate the transistor base-emitter AC resistance and the voltage gain of the amplifier stage