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Assignment 03-Sound and Ultrasound Problem 12.77 Part A In audio and communications systems, the gain, $\beta$, in decibels is defined for an amplifier as $\beta = 10 \log(\frac{P_{out}}{P_{in}})$, where $P_{in}$ is the power input to the system and $P_{out}$ is the power output. A particular amplifier puts out 110 W of power for an input of 1.6 mW. What is its gain in dB? Express your answer to two significant figures and include the appropriate units. $\beta = $ Value Units Submit Request Answer Part B If a signal-to-noise ratio of 93 dB is specified, what is the noise power if the output signal is 10 W? Express your answer to two significant figures and include the appropriate units. $P_{noise} = $ Value Units 21 of 24 > Review | Constants

          Assignment 03-Sound and Ultrasound
Problem 12.77
Part A
In audio and communications systems, the gain, \(\beta\), in decibels is defined for an amplifier as
$\beta = 10 \log(\frac{P_{out}}{P_{in}})$,
where $P_{in}$ is the power input to the system and $P_{out}$ is the power output. A particular amplifier puts out 110 W of power for an input of 1.6 mW.
What is its gain in dB?
Express your answer to two significant figures and include the appropriate units.
$\beta = $ Value Units
Submit Request Answer
Part B
If a signal-to-noise ratio of 93 dB is specified, what is the noise power if the output signal is 10 W?
Express your answer to two significant figures and include the appropriate units.
$P_{noise} = $ Value Units
21 of 24 >
Review | Constants

Assignment 03-Sound and Ultrasound
Problem 12.77
Part A
In audio and communications systems, the gain, β, in decibels is defined for an amplifier as
β = 10 log((Pout)/(Pin)),
where Pin is the power input to the system and Pout is the power output. A particular amplifier puts out 110 W of power for an input of 1.6 mW.
What is its gain in dB?
Express your answer to two significant figures and include the appropriate units.
β = Value Units
Submit Request Answer
Part B
If a signal-to-noise ratio of 93 dB is specified, what is the noise power if the output signal is 10 W?
Express your answer to two significant figures and include the appropriate units.
Pnoise = Value Units
21 of 24 >
Review | Constants

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