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marusya05 [52]
3 years ago
11

I NEED HELP PLEASE I have to explain the joke but I don’t know how to ?

Physics
1 answer:
Solnce55 [7]3 years ago
3 0
Why do transformers hum? Transformer noise is caused by a phenomenon which causes a piece of magnetic sheet steel to extend itself when magnetized. When the magnetization is taken away, it goes back to its original condition. This phenomenon is scientifically referred to as magnetostriction.
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