1. 2. 3. What are the three characteristics of a typical operational amplifier, regarding open loop gain, input impedance, and output impedance? (answer whether they are high or low.) If RF = 100k, and R= 20k, in the circuit below, determine the closed loop voltage gain, and solve for Vout if Vin = -2.0V. RE Vin R + QV+ V- Vout If in the above circuit, R= 12k and the voltage gain is 5, determine the feedback resistor's value. Also, determine the bandwidth for this inverting amplifier (suppose the gain- bandwidth product is 10 Hz).