SOLUTION: A constant tone is being applied to a speaker. The voltage across the speaker is 5 volts. The voltage across the speaker is increased to 15 volts in order to increase the sound lev

Question 559328: A constant tone is being applied to a speaker. The voltage across the speaker is 5 volts. The voltage across the speaker is increased to 15 volts in order to increase the sound level. What is the decibel gain, rounded to the nearest decibel?
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
A constant tone is being applied to a speaker. The voltage across the speaker is 5 volts. The voltage across the speaker is increased to 15 volts in order to increase the sound level. What is the decibel gain, rounded to the nearest decibel?
:
db = 20*log
db = 20*log(3)
db = 20*.477
db = 9.54 ~ 10 db gain

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