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Question 23.4: A certain amplifier has an input power of 1 W and an output ...

A certain amplifier has an input power of 1 W and an output power of 100 W. Calculate the dB power gain of the amplifier.

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Use Formula (23-11):

N_{dB}=10 \log \frac{P_{out}}{P_{in}}

 

=10 \log \frac{100W}{1 W}

 

=10 \times 2

=20 dB

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