question about the quest : A Knife in the Back [spoilers]

[Playful]

Hi,

So this quest is the second quest of the Sorobor Academy questline, and i'm stuck at the beggining of this quest where you need to go to the electric lab and you're supposed to find differente pieces for the engineer. I found everything except the power coil, at least in French it's named the power coil (I have the game in French so I don't know if the translation is correct) but anyway I did several times the whole dungeon looking for this last piece and I just can't find it.
Does anybody have already found it ? If yes, could you tell me where please ?

[Heldereim]

Power coils aren't specific to this quest, while there are some sprinkled around the electric lab they can also be bought from the engineer in levant. It's the gray metallic cylinders tha glow with a green glow.

[Ysthrall]

Yeah, you can pick up a couple there but they don't trigger on the quest log. However, if you have one in inventory when you report in, it'll be fine and still count.