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Note: This discussion is about an older version of the COMSOL Multiphysics® software. The information provided may be out of date.

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current on a ring

Posted 22.11.2011, 08:51 GMT-5 Version 4.2 1 Reply

Ricardo Canudas
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hallo everyone , i have a very simple question i guess... in a 3d model i have a copper ring and i want to see the magnetic field generated when there is 500 mA flowing trough the ring , my problem is... where do i set the 500 mA ,

what i did was right click on magnetic and electric fields, then add external current density , and then i get under settings :

0 x
Je 0 y A/m2
0 z

what do i have to write there if i want 500 mA flowing in the ring? or am i totally wrong?


thanks for your help =)

i attach the file just in case i didnt explain it right =)

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1 Reply Last Post 22.11.2011, 10:05 GMT-5
Edgar Kaiser
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Posted: 1 decade ago 22.11.2011, 10:05 GMT-5
Hi,

you must provide expressions that define the current vector field everywhere in the ring.

Cheers
Edgar
Hi, you must provide expressions that define the current vector field everywhere in the ring. Cheers Edgar

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