would an engineer use this equation? - Electrical - Engineer Boards
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would an engineer use this equation?

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i found this equation on the internet 2 × √ ( i/n ×  π  × a) for calculating the gauge of both the primary wire and secondary wire of a flyback converter. i is effective current, and n is number of turns, a is current density, and the article said pick 4 amps per millimeter squared to 8 amps per millimeter squared. would an engineer actually use this equation?

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