<PRE><B>Question 131555</B>
The voltage input of an amplifier is 0.5 volts. Its voltage output is 52 volts. Use the formula d=10log(E base 0/E base 1), where d is the decibel voltage, E base 0 is the output voltage, and E base 1 is the input voltage to find the decibel voltage.
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d=10log(E base 0/E base 1)  
Substitute the values you are given to get:
d = 10log(52/1)
d = 10*1.716...
d = 17.16 db
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O is like the output of a loudspeaker
E is like the voice of a person singing
17.16 is the gain in power produced by the amplifier.
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Cheers,
Stan H.

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