Physics12 Lab Report 6

Physics12 Lab Report 6 - Physics Lab Report 6 High...

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Physics Lab Report 6 High Temperature Superconductivity Teddy Portney 4/23/07 Lab LK Section A I. Introduction Superconductivity is when a material is cooled to temperatures well below the freezing point, usually on the range of –300 degrees Celsius. When this material surpasses the critical temperature, or Tc, the resistance in the material goes to zero, making it, by definition, a perfect conductor; a superconductor. As materials that are on the range of –300° Celsius are fairly uncommon and unstable in 20 degree Celsius (room temperature) atmospheres, not to mention fairly expensive. These conditions make “high temperature” superconductivity much more attractive. Despite the name, this type of superconductivity only works on the range of –200° to –150° Celsius. This is the perfect temperature for a common, fairly inexpensive material; liquid nitrogen, the cooling material used in this lab. II. Procedure
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Physics12 Lab Report 6 - Physics Lab Report 6 High...

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