I have an Operational Amplifier in Multisim 14 but i don't know how can i measure the Gain of this circuit. Is there any automatic way to do this?
You can measure gain with the following steps;
1- Click Simulate > Instruments > Measurement Probe
2- Place the probe on the wire between the voltage source and the resistor.
3- Click Simulate > Instruments > Preset Measurement Probes > Voltage with reference to probe
4- Select Probe1 as the reference
5- Place the probe on the output. Notice that the visible measurements includes gain.