Question is ⇒ The open loop frequency response of a unity feed back system is as u, Options are ⇒ (A) 20 dB and 15°, (B) 20 dB and 25°, (C) 6 dB and 15°, (D) 6 dB and 25°, (E) , Leave your comments or Download question paper.

Question is ⇒ The open loop frequency response of a unity feed back system is as u, Options are ⇒ (A) 20 dB and 15°, (B) 20 dB and 25°, (C) 6 dB and 15°, (D) 6 dB and 25°, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	The open loop frequency response of a unity feed back system is as u
A.	20 dB and 15° [Wrong Answer]
B.	20 dB and 25° [Wrong Answer]
C.	6 dB and 15° [Correct Answer]
D.	6 dB and 25° [Wrong Answer]
View Answer 1 -1 Explanation:- Answer : C Discuss it below : !! OOPS Login [Click here] is required to post your answer/result Help other students, write article, leave your comments

Previous question Next question

Also Read Similar Questions Below :

⇒ An RC driving point impedance function has zeros at s = - 2 and s = - 5. The admissible poles are
s = 0 and s = -6
s = -1 and s = -3
s = 0 and s = -1
s = -3 and s = -4

⇒ A branched duplexer requires
TR tubes
ATR tube
both TR and ATR tube
none of the above

⇒ The PIV of a bridge rectifier is less than that of full wave rectifier with centre tapped transformer.
TRUE
FALSE

⇒ The 2732 is 4096 x 8 EPROM. How many address lines does it have?
12
24
50
100

⇒ The 54/74164 chip is an 8-bit serial-input-parallel-output shift register. The clock is 1 MHz. The time needed to shift a 8-bit binary number into the chip is
1 μs
2 μs
8 μs
16 μs

⇒ The relation between bandwidth B, modulating frequency f_m and frequency deviation Δf for a sinusoidally modulated FM signal is
B = Δf + f_m
B = 2(Δf + f_m)
B = f_m - Δf/
B = 2(f_m - Δf)

⇒ A super heterodyne receiver has a IF of 465 kHz. It is tuned to a station broadcasting at 500 KHz and its oscillator is operating at 965 KHz, then the 1330 KHz frequency would be
adjacent channel frequency
image frequency
gyro frequency
maximum usable frequency

⇒ A parametric amplifier uses
non linear resistance
non linear reactance
either (a) or (b)
neither (a) nor (b)

⇒ An OR gate has 4 inputs. One input is high and the other three are low. The output
is low
is high
is alternately high and low
may be high or low depending on relative magnitude of inputs

⇒ Consider the following stateme
1 and 2 only
1, 2 and 4
2 and 3 only
2, 3 and 4

⇒ Electric lines of force do not cross each other because
the lines of force mutually repel each other
the lines of force emanate from a point charge
the tangent to the line of force gives the direction of E and if they cross two tangents for E which is not possible
none of the above

⇒ Consider the following materials

Nickel
Silver
Oxygen
Aluminium

The correct sequence in the order of decreasing permeability is
1, 4, 3, 2
1, 4, 2, 3
4, 1, 3, 2
4, 1, 2, 3

⇒ The damping coefficient for the given circuit is _______
42737
42739
2
1

⇒ Which of the following statements is incorrect regarding Balun transformer?
It changes impedance like current transformer
It changes balanced to unbalanced line
It is used to couple a co-axial line to a parallel line wire
Any of the above

⇒ Which device can detect the presence of both forward and backward waves in a waveguide?
Filter
Detector
Directional coupler
Magic T

⇒ FIR digital filter having __________ stability than FIR filter.
good stability
poor stability
stability not guarnteed
poor stability

⇒ The magnitude of transport lag factor is always zero.
TRUE
FALSE

⇒ In a 3 phase fully controlled converter the firing frequency is
3 times the line frequency
6 times the line frequency
9 times the line frequency
12 times the line frequency

⇒ In intrinsic semiconductors, the number of free electrons is equal to the number of mobile holes.
TRUE
FALSE

⇒ When a JFET is cut off, it's like an __________ switch and when it is saturated, it's like a __________ switch.
closed, open
open, closed
open, open
closed, closed

⇒ In the circuit of figure the function of resistor R and diode D
to limit the current and to protect LED against over voltage
to limit the voltage and to protect LED against over current
to limit the current and protect LED against reverse breakdown voltage.
none of the above.

⇒ If RADIUS = 3.0 the result of the following FORTRAN 77 program will be 1.5708
1
28.2744
18

⇒ The percentage saving in power of 100% modulated suppressed carrier AM signal is
100
75
66.6
50

⇒ The symbol in figure is
SUS
SBS
SCS
Shockley diode

⇒ The ripple factor of a full wave rectifier is about 0.5.
TRUE
FALSE

⇒ The damping ratio of a pair of complex poles when expressed in terms of angle θ measured from jω axis equal to
sin θ
cos θ
tan θ
cot θ

⇒ A depletion type NMOS is operated in enhancement mode. V_p = - 4 volts. For V_GS = + 3 volts as V_DS is increased, I_D becomes nearly constant when V_ps equals
1 volt
3 volts
4 volt
7 volts

⇒ The most commonly used microphone for public address systems is
carbon
crystal
moving coil
condenser

⇒ The radix of a hexadecimal system is
2
3
8
16

⇒ For a Hertz dipole antenna, the Half Power Beam Width (HPBW) in the E-plane is
360°
180°
90°
45°