3. Critical Current in a Cylindrical Wire A current of I amperes flows in a cylindrical superconducting wire of radius r cm. Show that when the field produced by the current immediately outside the wire is H. (in gauss), then I = 5rH. (34.44)

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Problems 755
3. Critical Current in a Cylindrical Wire
A current of I amperes flows in a cylindrical superconducting wire of radius r cm. Show that when
the field produced by the current immediately outside the wire is H. (in gauss), then
I
5rH..
(34.44)
Transcribed Image Text:Problems 755 3. Critical Current in a Cylindrical Wire A current of I amperes flows in a cylindrical superconducting wire of radius r cm. Show that when the field produced by the current immediately outside the wire is H. (in gauss), then I 5rH.. (34.44)
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