Missing factor of 2 pi in dielectric loss?

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The discussion revolves around confusion regarding the presence of a missing factor of 2 pi in the context of dielectric loss. A participant expresses uncertainty about a specific formula referenced in a document, indicating a lack of clarity in understanding the calculations involved. They acknowledge their novice status and seek clarification on the implications of the factor in the equation. The conversation highlights the need for deeper comprehension of the mathematical principles at play. Overall, the inquiry emphasizes the importance of accurate representation in formulas related to dielectric loss.
ChrisGreen
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Hi. I am sure that this is something to do with it being Friday afternoon...but can anyone explain what I am missing here?

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Thanks. Yes, I see that my sums merely had the superficial appearance of reality!
 
Hello! I want to generate an RF magnetic field at variable frequencies (from 1 to 20 MHz) using this amplifier: https://www.minicircuits.com/WebStore/dashboard.html?model=LZY-22%2B, by passing current through a loop of current (assume the inductive resistance is negligible). How should I proceed in practice? Can i directly connect the loop to the RF amplifier? Should I add a 50 Ohm in series? Thank you!