Multiple Choice
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 1.7 volts to 3 volts.
A) db = 4.9
B) db = 8.7
C) db = 7.2
D) db = 11.4
E) db = 3.8
Correct Answer:

Verified
Correct Answer:
Verified
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