PhyMad
Dec9-04, 02:04 AM
<jabberwocky><div class="vbmenu_control"><a href="jabberwocky:;" onClick="newWindow=window.open('','usenetCode','toolbar=no, location=no,scrollbars=yes,resizable=yes,status=no ,width=650,height=400'); newWindow.document.write('<HTML><HEAD><TITLE>Usenet ASCII</TITLE></HEAD><BODY topmargin=0 leftmargin=0 BGCOLOR=#F1F1F1><table border=0 width=625><td bgcolor=midnightblue><font color=#F1F1F1>This Usenet message\'s original ASCII form: </font></td></tr><tr><td width=449><br><br><font face=courier><UL><PRE>Hi all.\nI have a basic (naive may be) question about current in a\nsuperconductor.\n\nWe have a closed loop of wire of which half the length is\nsuperconducting and half is normal. Now we put a current source in the\nloop to supply current.\nJust the way it is done in superconducting magnets.\n\nNow my question is ...how does the current continue to flow from\nsource-to-N-to-S-to-N-back to-source. We know that the superconductor\nhas no "single electron" states, so the "single electron current" can\'t\nenter the superconducting part of the wire. But we find exactly the same\ncurrent (of course "super current") in the superconductor.\n\nPlease help me with my confusion. :confused:\n\nTIA\n\n------------------------------------------------------------------------\nThis post submitted through the LaTeX-enabled physicsforums.com\nTo view this post with LaTeX images:\nhttp://www.physicsforums.com/showthread.php?t=55260#post391325\n\n</UL></PRE></font></td></tr></table></BODY><HTML>');"> <IMG SRC=/images/buttons/ip.gif BORDER=0 ALIGN=CENTER ALT="View this Usenet post in original ASCII form"> View this Usenet post in original ASCII form </a></div><P></jabberwocky>Hi all.
I have a basic (naive may be) question about current in a
superconductor.
We have a closed loop of wire of which half the length is
superconducting and half is normal. Now we put a current source in the
loop to supply current.
Just the way it is done in superconducting magnets.
Now my question is ...how does the current continue to flow from
source-to-N-to-S-to-N-back to-source. We know that the superconductor
has no "single electron" states, so the "single electron current" can't
enter the superconducting part of the wire. But we find exactly the same
current (of course "super current") in the superconductor.
Please help me with my confusion. :confused:
TIA
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This post submitted through the LaTeX-enabled physicsforums.com
To view this post with LaTeX images:
http://www.physicsforums.com/showthread.php?t=55260#post391325
I have a basic (naive may be) question about current in a
superconductor.
We have a closed loop of wire of which half the length is
superconducting and half is normal. Now we put a current source in the
loop to supply current.
Just the way it is done in superconducting magnets.
Now my question is ...how does the current continue to flow from
source-to-N-to-S-to-N-back to-source. We know that the superconductor
has no "single electron" states, so the "single electron current" can't
enter the superconducting part of the wire. But we find exactly the same
current (of course "super current") in the superconductor.
Please help me with my confusion. :confused:
TIA
------------------------------------------------------------------------
This post submitted through the LaTeX-enabled physicsforums.com
To view this post with LaTeX images:
http://www.physicsforums.com/showthread.php?t=55260#post391325