4 years ago

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

1 answer:

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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$\boxed {\boxed {\sf True}}$

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