7. Superconductivity - University of Liverpool
7. Superconductivity - University of Liverpool
7. Superconductivity - University of Liverpool
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Integrating the current along a circumference C, and assuming<br />
a uniform current J in the layer, we find<br />
m<br />
JC = qB(Cλ).<br />
qρ<br />
J is unknown. In order to find the thickness λ, notice that the<br />
current flows like a solenoid, which has the formula<br />
B = µ 0NI<br />
L .<br />
<strong>Superconductivity</strong> 28