All you need to do is wrap some insulated copper wire around an iron core. ... like to build the electromagnet described in our Magnets and Electromagnets ... As electricity passes through a wire, some of the electrical energy is ... If a permanent magnet is not attracted to your core, it will not make a good electromagneT
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All you need to do is wrap some insulated copper wire around an iron core. ... like to build the electromagnet described in our Magnets and Electromagnets ... As electricity passes through a wire, some of the electrical energy is ... If a permanent magnet is not attracted to your core, it will not make a good electromagneT
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dhanay vad bhai repy dene ke liye