When the volume control on a stereo system is increased, the voltage across a loudspeaker changes from V 1 to V 2 , and the decibel increase is given by Find the decibel increase if the voltage changes from 1.6 volts to 3.9 volts.
A) db = 13.0
B) db = 11.6
C) db = 21.4
D) db = 9.3
E) db = 8.2
Correct Answer:
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