1
GATE ECE 1990
MCQ (More than One Correct Answer)
+2
-0
Which of the following statements are correct for basic transistor Amplifier configurations?
A
CB Amplifiers has low input impendence and low current gain.
B
CC Amplifiers has low output impedence and a high current gain.
C
CE Amplifier has very poor voltage gain but very high input impedance.
D
The current gain of CB Amplifier is higher than the current gain of CC Amplifiers.
2
GATE ECE 1990
MCQ (Single Correct Answer)
+2
-0.6
An image uses $$512\, \times \,512$$ picture elements. Each of the picture elements can take any of the 8 distinguishable intersity levels. The maximum entropy in the above image will be
A
2097152 bits
B
786432 bits
C
648 bits
D
144 bits
3
GATE ECE 1990
MCQ (Single Correct Answer)
+2
-0.6
In a BPSK signal detector, the local oscillator has a fixed phase error of 200. This phase error deteriorates the SNR at the output by a factor of
A
$$\cos {20^0}$$
B
$${\cos ^2}{20^0}$$
C
$$\cos {70^0}$$
D
$${\cos ^2}{70^0}$$
4
GATE ECE 1990
Subjective
+10
-0
A system is characterized by the following state-space equations: GATE ECE 1990 Control Systems - State Space Analysis Question 7 English

a) Find the transfer function of the system

b) Compute the state-transition matrix/p>

a) Solve the state equation for a unit-step input under zero initial conditions

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