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How Will You Make an Iron Bar Electromagnet? Draw a Diagram Showing the Polarities of the Electromagnet? - Physics | Shaalaa.com
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How to make an electromagnet that changes its polarity after a fixed interval of time? | ResearchGate
![SOLVED: Consider the coil as an electromagnet, how can you determine the polarity from direction of the induced current SOLVED: Consider the coil as an electromagnet, how can you determine the polarity from direction of the induced current](https://cdn.numerade.com/ask_previews/ce0581db-68a0-4dce-97ba-52377fc230b8_large.jpg)
SOLVED: Consider the coil as an electromagnet, how can you determine the polarity from direction of the induced current
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