If toroid uses bismuth for its core, will the field in the core be (slightly) greater or (slightly) less than when the core is empty ?

If toroid uses bismuth for its core, will the field in the core be (sl

1.	If toroid uses bismuth for its core, will the field in the core be (slightly) greater or (slightly) less than when the core is empty ?
Answer» As bismuth is diamagnetic, therefore, the field in the core will be slightly less than when the core is empty.

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If toroid uses bismuth for its core, will the field in the core be (slightly) greater or (slightly) less than when the core is empty ?

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