Electromagnetic theory is the maths that tells us why motors spin and radios catch voices, but in my college, it's mostly chalked equations on a fading blackboard. Its importance feels distant because we've never *seen* a proper transformer lab or held the humming parts. What stays with me is the old ceiling fan in our classroom, which I now *phang* struggles because of loose magnetic fields—that shaky whisper makes the theory real, more than any textbook diagram could.
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