1
GATE ECE 2017 Set 1
Numerical
+1
-0
Let $$\left( {{X_1},\,{X_2}} \right)$$ be independent random variables, $${X_1}$$ has mean 0 and variance 1, while $${X_2}$$ has mean 1 and variance 4. The mutual information I $$\left( {{X_1},\,{X_2}} \right)$$ between $${{X_1}}$$ and $${{X_2}}$$ in bits is ________________.
Your input ____
2
GATE ECE 2017 Set 1
MCQ (Single Correct Answer)
+2
-0.6
A linear time invariant (LTI) system with the transfer function $$$G\left(s\right)=\frac{K\left(s^2+2s+2\right)}{s^2-3s+2}$$$ is connected in unity feedback configuration as shown in the figure. GATE ECE 2017 Set 1 Control Systems - Root Locus Diagram Question 11 English

For the closed loop system shown, the root locus for 0 < K < $$\infty$$ intersects the imaginary axis for K = 1.5. The closed loop system is stable for

A
K>1.5
B
1 < K < 1.5
C
0 < K < 1
D
no positive value of K
3
GATE ECE 2017 Set 1
MCQ (Single Correct Answer)
+2
-0.6
Which one of the following options correctly describes the locations of the roots of the equation s4 + s2 + 1 = 0 on the complex plane?
A
Four left half plane (LHP) roots
B
One right half plane (RHP) root, one LHP root and two roots on the imaginary axis
C
Two RHP roots and two LHP roots
D
All four roots are on the imaginary axis
4
GATE ECE 2017 Set 1
MCQ (Single Correct Answer)
+1
-0.3
Consider a stable system with transfer function $$$G\left(s\right)=\frac{s^p+b_1s^{p-1}+....+b_p}{s^q+a_1s^{q-1}+....+a_q}$$$ Where $$b_1,.......,b_p$$ and $$a_1,.......,a_q$$ are real valued constants. The slope of the Bode log magnitude curve of G(s) converges to -60 dB/decade as $$\omega\rightarrow\infty$$ . A possible pair of values for p and q is
A
p = 0 and q = 3
B
p = 1 and q = 7
C
p = 2 and q = 3
D
p = 3 and q = 5