mapp3
Oct 4, 2015, 12:33 PM
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?
ebaines
Oct 5, 2015, 05:59 AM
We don't provide homework answers here. However. we will be happy to help you along if you show us your attempt so we can see where you are getting stuck. To get you started:
1. Do you know the definition of dB?
2. Do you know how to calculate the ratios of the power when increasing from 5 to 15 volts?