Meshing issues - small gaps

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Hi,

I am trying to mesh some coils that have small gaps between them (≈0.5mm). In reality this space will be filled with an insulator. I keep getting the following warnings with my mesh:

"Faces adjacent to a thin region" "Domain has a region that is much thinner than the specified minimum element size"

In understand its because of these gaps but not sure of the best approach to fix this issue. Any help would be appreciated.

FYI This is my first COMSOL project and I am self taught



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