- #1
Tree Penguin
- 20
- 0
Electro magnets / DC / metal wire / vibrating?
Hi, just a very basic question:
I just tried making my own electro magnet (copper coil, steel core, connected to a 12V 2A DC power source) and i noticed that when i hold a metal wire (or just anything that's normally attracted by magnets) in it's field it starts to vibrate.
Is this because the dc output of an ac adapter is not a perfectly straight current but a rectified version of the ac?
Hi, just a very basic question:
I just tried making my own electro magnet (copper coil, steel core, connected to a 12V 2A DC power source) and i noticed that when i hold a metal wire (or just anything that's normally attracted by magnets) in it's field it starts to vibrate.
Is this because the dc output of an ac adapter is not a perfectly straight current but a rectified version of the ac?
Last edited: