Electronics and Communication Engineering - Automatic Control Systems
Exercise : Automatic Control Systems - Section 1
- Automatic Control Systems - Section 1
- Automatic Control Systems - Section 2
- Automatic Control Systems - Section 3
- Automatic Control Systems - Section 4
- Automatic Control Systems - Section 5
- Automatic Control Systems - Section 6
- Automatic Control Systems - Section 7
- Automatic Control Systems - Section 8
- Automatic Control Systems - Section 9
- Automatic Control Systems - Section 10
36.
In Bode diagram (log magnitude plot) the factor
in the transfer function gives a line having slope

Answer: Option
Explanation:
For term the slope is -20 dB/decade or -6 dB/octave because - 20 log 2 = -6 dB.
37.
In the given figure the input is x(t) = A sin ωt. The steady state output y(t) =


Answer: Option
Explanation:
The magnitudes A and G(jω) are multiplied and phase angles are added.
38.
In the given figure x6 =


Answer: Option
Explanation:
The input x1 is multiplied by a, x2, by b and x3 by c. The sum total is multiplied by d and e.
39.
A negative feedback system has
. The closed loop system is stable for

Answer: Option
Explanation:
Find characteristic equation.
40.
For the given figure, 



Answer: Option
Explanation:
For the inner loop, transfer function =
Then .
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