SOLUTION: losses in a long telephone line reduce a 30-watt input signal to an output of 6 watts. find the db gain.(because it is a loss, the "gain" will be negative.)

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Question 1103918: losses in a long telephone line reduce a 30-watt input signal to an output of 6 watts. find the db gain.(because it is a loss, the "gain" will be negative.)
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
losses in a long telephone line reduce a 30-watt input signal to an output of 6 watts. find the db gain.(because it is a loss, the "gain" will be negative.)
db = 10*log(p2/p1)
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Ans:db = 10*log(6/30) = 10*log(1/5) = 10*-0.699 = -7 when rounded
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Cheers,
Stan H.