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Author Topic: I need help about two question  (Read 2700 times)

electroon

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  • Posts: 7
I need help about two question
« on: May 22, 2015, 09:15:05 PM »
Hi all dear friends.
First, if is not right place for this topic  I am very sorry,
I need help about two these question:
1) How does the magnetic field in the center of toroidal coils?
2) How is calculated the motors resonance and what is the maths formula for this?