Phasors: Passive RL Circuit Response Lab
In this lab assignment, we measured the gain and phase responses of a passive RL circuit and compared these measurements with expectations based on analysis.
This is the pre-lab, where we showed that the amplitude gain and phase difference between the input voltage and input current are shown. Also the cutoff frequency for the circuit.
This is a picture of our circuit.
We used the function generator to apply a sinusoidal input at Vin. The oscilloscope displayed both Vin and Vl.
We calculated the measured gains and phase differences between Iin and Vin for the three frequencies.
With the measurements we used to estimate the gain and phase difference between Vin and Iin and the gain and phase difference between Vl and Iin.
These results were compared with the value from the pre-lab, We do not have the ability to directly measure a time-varying current, so we used Iin=(Vin-Vl) / R
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