Question 165839
A constant tone is being applied to a speaker, the voltage across the speaker is 5 volts. Volts increased to 15 volts in order to increase the sound level. what is the decibel gain? round to the nearest decibel 
:
The decibel formula for voltage: db = 20*log({{{((E1))/((E2))}}})
:
E1 = 15 v; E2 = 5v
:
db = 20*log({{{(15))/(5))}}})
:
db = 20*log(3)
:
db = 20 * .47712
:
9.54 db ~ 10 db gain