amplifier circuit

[yalect]

Hello,

I would like to ask you, how can I calculate the input impedance of the simple following amplifier and its bandwidth in multisim or theoretically ?

Thank you

[caro16av]

Hi yalect,

You could follow this Knowledge Base article that explains how to Find the Circuit Impedance in Multisim.
http://digital.ni.com/public.nsf/allkb/9F8D30235DE3EC0186257592006B23A2

So basically, you can place a probe on the wire, so you can have Current and Voltage, and with this you can add an Expresion to calculate the impedance (Z= V/I).

Another option would be to use the impedometer.

If you are using Multisim 14, select File>>Open Samples>>LabVIEW Instruments>>Impedometer>>Impedometer.ms14,  copy/paste the impedance meter from that circuit to your circuit.

Regards,

Carolina