hi everyone,
I am trying to build a pipe that will have a ball baring levitating inside it. It needs to be an electromagnet as I need to be able to turn it on an off. I have made one of the simple "coil around a nail" and it works as a magnet although it is weak.
What material should I use for the pipe... and what thickness of coil should I use... and what battery to power it... and how tight should the coils be wrapped...
I am trying to build a pipe that will have a ball baring levitating inside it. It needs to be an electromagnet as I need to be able to turn it on an off. I have made one of the simple "coil around a nail" and it works as a magnet although it is weak.
What material should I use for the pipe... and what thickness of coil should I use... and what battery to power it... and how tight should the coils be wrapped...