This idea has led to the introduction of a newquantity called decible (dB), which is 20 times the logarithm of the magnitude of a complexnumber. ... Furthermore and without anyloss of generality, byletting R = Rr we also let Pr = 1W (one Watt).
|Title||:||Circuit Analysis Fundamentals|
|Publisher||:||Agile Press - 2005|