why steel is not used in electromagnet
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steel is used for making the core of an electromagnet, the steel does not lose all its magnetism when the current is stopped and it becomes a permanent magnet. Therefore steel is not used as the core of electromagnet. because steel is not a magnetic substance. the electromagnet needs magnetic substances.
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because steel cannot be easily magnetised and de-magnetised...... that is why soft iron bar is used in electromagnet as it can be easily magnetised and de-magnetised..
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