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

1.	If a 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» Solution :SLIGHTLY LESS, since bismuth is a diamagnetic material in nature.

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If a 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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