Hello, all!
I have a question from The Art of Electronics. I'll start by giving just the question, it reads: Determine the voltage and power ratios for a pair of signals with the following decibel ratios: a) 3dB, b) 6dB, c) 10dB, d) 20 dB. Relevant information would be: dB=20log(base 10)(A2/A1) and dB=10log(base 10)(P2/P1)
Basically, I was wondering if anyone could interpret what "pair" of signals this question is referring to (because there's 4). If you interpret it as like "what is the ratio of 3dB to 6dB?", that seems to go without saying... So I feel I'm missing something, unless this is just an algebra problem where you isolate (A2/A1) and solve for it with the left side of the equation being 3dB for part a) and so on, but even then I feel like this example is hinting at something more important and obvious.
I have a question from The Art of Electronics. I'll start by giving just the question, it reads: Determine the voltage and power ratios for a pair of signals with the following decibel ratios: a) 3dB, b) 6dB, c) 10dB, d) 20 dB. Relevant information would be: dB=20log(base 10)(A2/A1) and dB=10log(base 10)(P2/P1)
Basically, I was wondering if anyone could interpret what "pair" of signals this question is referring to (because there's 4). If you interpret it as like "what is the ratio of 3dB to 6dB?", that seems to go without saying... So I feel I'm missing something, unless this is just an algebra problem where you isolate (A2/A1) and solve for it with the left side of the equation being 3dB for part a) and so on, but even then I feel like this example is hinting at something more important and obvious.