SOLUTION: An amplifier has an input power of 5 mW. The output power is 100 mW. What is the decibel gain to the nearest decibel?

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Question 316458: An amplifier has an input power of 5 mW. The output power is 100 mW. What is the decibel gain to the nearest decibel?
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
An amplifier has an input power of 5 mW.
The output power is 100 mW.
What is the decibel gain to the nearest decibel?
:
The decibel gain equation: db = 10*log%28%28p2%29%2F%28p1%29%29
:
In this problem p1 = 5 mw; p2 = 100 mw
:
db = 10*log%28%28100%29%2F%285%29%29
:
db = 10*log(20)
:
db = 10*1.301
:
db = 13 db gain