why transformers hum

The video tutorial explains how magnetic fields in generators push and pull electrons, causing alternating current (AC) and resulting in a sine wave pattern. It discusses the frequency of AC in different regions and how transformers work by transferring voltage between coils. The video also covers transformer efficiency, the role of iron cores, and energy losses due to eddy currents, resistance, and vibrations. Finally, it concludes with a brief thank you to viewers.

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