Mathematics
Mathematics, 31.03.2021 19:10, autumn8668

Which electromagnet is the strongest? A black bar with 5 copper colored coils around it.

A black bar with 2 copper colored coils around it.

A black bar with 7 copper colored coils around it.

A black bar with 4 copper colored coils around it.

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Which electromagnet is the strongest? A black bar with 5 copper colored coils around it.

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