How to use MGNFIELD Card in two areas

Physics, Transport and Magnetic Fields
1

Dear Experts:

The upper and lower plates are filled with air and there is a water mold in the air, I want to add a uniform magnetic field to the upper and lower plates, should I use the MGNFIELD Card like this?

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t1.flair (7.4 KB)

2

Dear Sima,

these cards will create the magnetic field in the air and water regions.

You can always check the field by plotting it.
See slide 13 from:

Cheers,
David