1. Analyze the circuit in figure 1 of the lab to show that it is a negative impedance converter, i.e., show that Z_in = V_in/I_in = -Z.
 
 
 
 
 
 
 

2. What is the time constant, τ, for the circuit of figure 4 in the lab?

3. Analyze the circuit of figure 2 in the lab to show that its input impedance is Z_in=Z₁Z₃Z₅/(Z₂Z₄). Verify that if  Z₂ or Z₄ is a capacitor and the other impedances are resistors, then Z_in is the impedance of an inductor.