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Mutual inductance of two coils COMSOL 6.0 AC/DC electromagnetics

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Old   December 7, 2023, 04:51
Default Mutual inductance of two coils COMSOL 6.0 AC/DC electromagnetics
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Hi,

I use the expression mf.L_2_1 for obtaining the M between two coils in a 3D model, but when click "evaluate", appears next error:

Undefined variable. - Variable: mf.L_2_1 - Global scope Failed to evaluate expression. - Expression: mf.L_2_1 - Feature: Global Evaluation 1

Do you know why?

Thnks in advance!
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