. An amplifier has a voltage gain
Av = 1000. The voltage gain in dB is :
(a) 30 dB
(b) 60 dB
(c) 3 dB
(d) 20 dB
Best Answer
Answer (a)
Solution ||| Voltage gain Av = 1000
In dB, voltage gain A = 10 log10 1000 dB
= (10×3) log10 10 dB
= 30 ( log10 10 = 1)
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