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An amplifier has a voltage gain A(v)= 10...

An amplifier has a voltage gain `A_(v)= 1000`. The voltage gain in `dB` is:

A

30

B

60

C

3

D

20

Text Solution

Verified by Experts

The correct Answer is:
A
Voltage gain, `A_(V)=1000`
In dB, voltage gain `A=10log_(10)1000dB`
`=(10xx3)log_(10)10dB`
`=30dB " " (because log_(10)10=1)`
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