Superconductor with no current?

  • Thread starter Racer77
  • Start date
9
0

Main Question or Discussion Point

Hello everyone! My brother is having a science fair coming up. He is doing it over superconductors. We have the Meissner effect down just fine, but I have this idea to pass a current through the ceramic in its superconducting state. We want to show the difference in brightness of a little lamp compared to a regular wire. We are having trouble with this part. Whenever we touch both wires to the ceramic (in the superconducting state) nothing happens. The light does not glow. We can not figure out what is wrong. It should pass a current. I dont know if there is some coating around it that stops the electrons or not. Thanks for any Help!
 

Answers and Replies

172
0
Ohm's Law meet's Occams Razor. Where you put the wires, do the same with an Ohm Meter and check the resistance under the conditions where you thing the ceramic is in a superconducting state. If the result on the meter is larger than zero, then the ceramic is, for whatever reason, not in the superconducting state you think it is.
 

Related Threads for: Superconductor with no current?

  • Last Post
Replies
6
Views
3K
Replies
32
Views
3K
Replies
4
Views
2K
Replies
1
Views
600
Replies
9
Views
1K
  • Last Post
Replies
6
Views
1K
  • Last Post
Replies
8
Views
793
  • Last Post
Replies
5
Views
1K
Top