SOLUTION: The signal to a speaker causes .5 amps of current. The signal level is increased to 2.5 amps. What is the gain, rounded to the nearest decibel? I'm really stuck, please help me!

Question 316456: The signal to a speaker causes .5 amps of current. The signal level is increased to 2.5 amps. What is the gain, rounded to the nearest decibel?
I'm really stuck, please help me!
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
The signal to a speaker causes .5 amps of current.
The signal level is increased to 2.5 amps.
What is the gain, rounded to the nearest decibel?
:
The decibel gain formula using current: db = 20log
where I1=.5, I2=2.5
:
db = 20log
db = 20log(5)
db = 20*.69897
db = 13.9794 ~ 14 db gain
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