When current flows in the coil rounded around an iron core then the iron core becomes an:

Bar Magnet

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Permanent Magnet

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Electromagnet

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Ordinary Magnet

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Solution

The correct option is C
Electromagnet

When current flows in the coil rounded around an iron core then the iron core becomes an electromagnet.

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In an iron cored coil , if the iron core is removed how will it affect the inductance of the coil?

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