amplifier

itryphysics

1. The problem statement, all variables and given/known data

You are trying to decide between two new stereo amplifiers. One is rated at 130 W per channel and the other is rated at 200 W per channel.
In terms of dB, how much louder will the more powerful amplifier be when both are producing sound at their maximum levels?


2. Relevant equations

dB = 10 log (I/I_o)



3. The attempt at a solution

I was not sure If i can use the 130 W and 200 W as intensities....

Confundo

Power is proportional to the intensity so yes.

itryphysics

so the solution is :

dB = 10 log (130/200) ???