Superconductor with no current?

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SUMMARY

The discussion centers on the challenges faced when attempting to pass a current through a ceramic superconductor in its superconducting state. The participants highlight the importance of verifying the superconducting state using an Ohm Meter to check resistance. If the resistance is greater than zero, the ceramic is not in the expected superconducting state. The Meissner effect is acknowledged, but the practical application of demonstrating current flow through the superconductor remains unresolved.

PREREQUISITES
  • Understanding of the Meissner effect in superconductors
  • Knowledge of Ohm's Law and its application
  • Familiarity with using an Ohm Meter for resistance measurement
  • Basic principles of superconductivity and its requirements
NEXT STEPS
  • Research the conditions required for superconductivity in ceramic materials
  • Learn about the limitations of current flow in superconductors
  • Investigate methods to prepare and test superconducting ceramics
  • Explore practical demonstrations of the Meissner effect and its implications
USEFUL FOR

Students, educators, and science enthusiasts interested in superconductivity, particularly those conducting experiments or projects related to superconductors and their properties.

Racer77
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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 don't know if there is some coating around it that stops the electrons or not. Thanks for any Help!
 
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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.
 

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