Electrical Engineering - Passive Filters - Discussion

Discussion :: Passive Filters - General Questions (Q.No.15)

15. 

Vout = 500 mV, and Vin = 1.3 V. The ratio Vout/ Vin expressed in dB is

[A]. 0 dB
[B]. 8.30 dB
[C]. –8.30 dB
[D]. 0.8 dB

Answer: Option C

Explanation:

No answer description available for this question.

Hsk said: (Jan 27, 2012)  
20 log (Vout/Vin)

Pradip Lal Biswas said: (Nov 4, 2015)  
We know,

db = 20log Vout/Vin.

= 20 log (500m/1.3).
= 20 log 0.385.

= 20*(-0.415).
= -8.29.

Ganesh said: (Jul 20, 2016)  
Please explain the answer cleary.

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