1. For the inverting, summing amplifier shown, find the voltage gain relationship (i.e., relationship between output v_o and inputs v_a, v_b).

2. For the circuit of figure 3 in the lab:

a) Find the input impedance to the right of V₁.

 

 
 

b)  What is the output impedance of the amplifier circuit?




 

a) What is the voltage gain of this circuit?
 
 
 
 
 
b) What is the input impedance of this circuit?

 

 

c)  What is its output impedance of this circuit?