I though that an inductor, when it doesn't have current flowing through it anymore, would quickly discharge in the opposite polarity. More precisely, I was expecting one quick peak in a negative voltage, and then the voltage going back to its previous value once the inductor is discharged.
The kickback, however, seems to behave more like a slowly fading sine wave on my oscilloscope, going in multiple times in high ranges of negative / positive values before fading away. (see picture)
- Why are there are multiple peaks?
- Why are there are peaks of positive voltage as well?
Am I missing something?
Edit : Oscilloscope readings of a circuit composed of a 3 volts battery , 2 short wires to the battery (~ 1 inch each), and the 1x probe connected directly to each of these wires