An amplifier has a 50 watt output and a 5 watt input. what is the gain in decibels for this amplifier, rounded to the nearest decibel?

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02-05-2018
Physics

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An amplifier has a 50 watt output and a 5 watt input. what is the gain in decibels for this amplifier, rounded to the nearest decibel?

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jushmk jushmk · Answer 1 · 2018-05-14T15:03:20+02:00

jushmk jushmk

14-05-2018

Gain in decibels is given by;

Gain db = 10*log (Po/Pi), where Po = Power output, Pin = Power input

Substituting;

Gain in db = 10 * log (50/5) = 10 db

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