buddypoor
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Hi Aaron, I understand your question, however I think it is not appropriate to use equations like P=I*I*R or V=I*R to find an answer how dBohm is defined.
The reason is as follows: It is simply a definition and it is "dangerous" to use dB within formulas, because DB is NOT a unit (like volts, seconds, meter,..). It is only an indication that "something" has been done with this quantity - in this case: Divide by 1 ohm, transfer the number into log, and multiply by 20. Example: 100ohms are identical to 40 dBohm and if you multiply this resistance by 10 you arrive at: 40 dbohm+20dB=40dBohm. (You add dbohm and dB and the result is dBohm!)
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