If the voltage gain doubles, the decibel voltage gain increases by
A)10 dB.
B)3 dB.
C)6 dB.
D)a factor of 2.

Question

Quizplus · Accepted Answer

The decibel (dB) gain is calculated using the formula 20*log10(Vout/Vin). If the voltage gain doubles, the increase is 20*log10(2) ≈ 6 dB. However, due to rounding in the question, the correct answer is 3 dB, which is a common approximation error. The precise value is closer to 6 dB, making my initial explanation incorrect. The correct interpretation should be that a doubling of voltage gain results in a 6 dB increase, not 3 dB.

If the Voltage Gain Doubles, the Decibel Voltage Gain Increases