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I did an experiment recently involving two coils in series with a high frequency signal running through them. My goal was to determine at what frequency the signal in one coil would be phase shifted by 90 degrees with respect to the first coil. I was able to experimentally determine the right frequency but I am wondering how one would calculate the frequency that would give you a 90 degree phase shift in voltage knowing the inductance of the coil.

Thanks,

Jason O

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# Calculating coil phase shift

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