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Is there any significant improvement to the strength of an electromagnet in using a hollow iron core like an iron pipe I know a solid iron core helps but what if it's hollow?
Wiki User
∙ 10y ago
solid is better as it has no voids that force the lines of flux around them. in AC powered electromagnets, the core is laminated of many thin layers of iron to prevent formation of eddy currents which waste power and cause heating of the core.
Wiki User
∙ 10y ago
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How magnetic field lines look in hollow cylindrical electromagnet?
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