Electronics and Communication Engineering - Automatic Control Systems - Discussion
Discussion Forum : Automatic Control Systems - Section 1 (Q.No. 44)
44.
In the given figure, if R = XC, voltage gain is
Answer: Option
Explanation:
If R = XC, V0 = 0.5 Vi Hence gain is -3 dB.
Discussion:
8 comments Page 1 of 1.
Anushka said:
6 years ago
vo/vi = Xc/(R+Xc).
vo/vi = Xc/(Xc+Xc).
vo/vi = 0.5.
vo = 0.5vi.
vo/vi = Xc/(Xc+Xc).
vo/vi = 0.5.
vo = 0.5vi.
Ximena said:
6 years ago
How do you know vo/vi = 0.5 or = 0.707?
Shubham Hokarne said:
7 years ago
20log(0.5) = -6.02059991328.
This could be the correct one.
This could be the correct one.
Sashank said:
8 years ago
-6 db is the right answer.
Debraj said:
9 years ago
It's wrong. The correct answer is -6dB.
Koushalya said:
9 years ago
From given circuitt, Vo/Vi = 0.707 which is in decibal -3db.
Natty said:
1 decade ago
The above options are wrong.
20 log (Vo/Vi) is the expression, where Vo/Vi = 0.5.
So upon calculating we get -6.02 dB.
20 log (Vo/Vi) is the expression, where Vo/Vi = 0.5.
So upon calculating we get -6.02 dB.
Ahish said:
1 decade ago
I am not getting answer. Can somebody solve it clearly please?
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