What is causing the copper wire to not conduct in my inductor coil?

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SUMMARY

The discussion centers on the issue of conductivity in an inductor coil made from insulated copper wire. Users identified that the lack of conductivity is likely due to an insulating enamel coating on the copper wire. Recommendations include using sandpaper to remove the coating, which should reveal a bright copper color if the wire is indeed insulated. This approach is essential for ensuring proper electrical conduction in the inductor coil.

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nst.john
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I am making an inductor coil out of wire that I removed from a piece of insulated copper wire. The inductor didn't conduct and I checked the conductivity of the coil alone via a multimeter and it didn't conduct any electricity and it is a copper wire so I need to know what is going on here! Thank you!
 
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My first guess would be that there is an insulating coating on the wire. Try to sand it a bit. If the color changes to a bright copper, then there is a coating.
 
.Scott said:
My first guess would be that there is an insulating coating on the wire. Try to sand it a bit. If the color changes to a bright copper, then there is a coating.
yup, probably got an enamel coating
 

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