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Transfer functions of even complicated components can be found by frequency response tests. | |
A. | TRUE [Correct Answer] |
B. | FALSE [Wrong Answer] |
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Explanation:-
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Also Read Similar Questions Below :
⇒ Frequency frogging is used in a carrier system to
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⇒ 2's complement representation of a 16 bit number (one sign bit and 15 magnitude bit) is FFFF. Its magnitude in decimal representation is
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⇒ Frequency frogging is used in a carrier system to
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reduce distortion
reduce cross talk
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⇒ 2's complement representation of a 16 bit number (one sign bit and 15 magnitude bit) is FFFF. Its magnitude in decimal representation is
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65, 535
⇒ For dc the current through coupling capacitor in CE amplifier circuit is
very high
high
low
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⇒ Two phasors having rms values V_{1} and V_{2} which are added to give a phasor having rms value V_{3}. V_{3} is maximum if phase angle between V_{1} and V_{2} is
90°
180°
270°
360°
⇒ Decimal 8 in excess-3 code =
1000
1001
1011
1111
⇒ A 256 x 4 EPROM has
8 address pins and 4 data pins
8 address pins and 8 data pins
4 address pins and 8 data pins
4 address pins and 4 data pins
⇒ In telephone systems the relation between load r, number of calls initiated during a specified interval λ and average duration of a call (h) is
r = λh
r = λh^{2}
λ = rh
h = λr
⇒ The number of logic or arithmetic operations with
ALU 1C 74181
can carry out is4
8
16
32
⇒ In a conductor the conduction and valence bands overlap
TRUE
FALSE
⇒ In which of the following devices can the operation be visualised in terms of a series feedback loops?
TWT
Reflex klystron
Klystron amplifier
Backward wave oscillator
⇒ The percentage saving in power of 100% modulated suppressed carrier AM signal is
100
75
66.6
50
⇒ Consider the following stateme
1, 2 and 3
1 and 2 only
2, 3 and 4
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⇒ Ultra high frequency oscillators work in the range
20 Hz to 20 kHz
1 kHz to 30 kHz
30 kHz to 30 MHz
above 30 MHz
⇒ In the graphical analysis of CE amplifier circuit, the upper end of load line is called
saturation point
cut off point
Q point
none of the above
⇒ An RL impedance function can also be realized as
RC impedance function
RC admittance function
LC impedance function
LC admittance function
⇒ Consider the following statements:
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- In the 2's complement representation the most significant bit (MSB) is zero for a positive number.
- In a 4 bit binary representation of a binary number A, A + 1's complement of A = 2^{4}.
1 and 2 only
1 and 3 only
2 and 3 only
1, 2 and 3
⇒ The radiation resistance of a rod tubing antenna is
55 Ω to 60 Ω
60 to 100 Ω
0 to 377 Ω
60 to 200 Ω
⇒ A signal x(n) = sin(ω_{0}n + φ) is the input to a linear time invariant system having a frequency response H(e^{jω}) If the O/P of the system is Ax(n -n_{0}), then the general form of H(e^{jω}) will be
- n_{0}ω_{0} + β for any arbitrary real β
- n_{0}ω_{0} + 2pk for any arbitrary integer k
n_{0}ω_{0} + 2pk for any arbitrary integer k
- n_{0}ω_{0} + φ
⇒ Find the odd one out
sweep voltage generator
multivibrators
sine wave oscillators
blocking oscillators
⇒ Open-circuit voltage is the potential difference between two point when the impedance between these points is
zero
infinity
capacitive
reactive
⇒ Modulated carrier power in FM
increases with modulating signal power
decreases with modulating signal power
is independent of the modulating signal power
none
⇒ Which of the following is not a conducting material?
Copper
Tungsten
Germanium
Platinum
⇒ In a self bias circuit for CE amplifier, the emitter resistance is made three times the original value. The collector current will
remain the same
become three times
decrease
become one-third
⇒ Measurement of hall coefficient enables the determination of
mobility of charge carriers
type of conductivity and concentration of charge carriers
temperature coefficient and concentration of charge carriers
fermi level and forbidden energy gap
⇒ For the minterm designation Y = ∑ m (1, 3, 5, 7) the complete expression is
Y = A BC + A B C
Y = A B C + A B C + ABC + A BC
Y = A B C + A B C + ABC + A BC
Y = A B C + ABC + A BC + A BC
⇒ Which chopper circuit operates in all the 4 quadrants?
A
C
D
E
⇒ The MOS symbol shown indicates that
- It is depletion type
- It is enhancement type
- It is channel
- It is P-channel
- Electrons flow from s to D
- Holes flow from D to s
1, 3, 6
1, 3, 5
2, 4, 6
2, 3, 5
⇒ Programmable logic array uses
RAM matrices
ROMs matrices
PROM matrices
Silo memory
⇒ Each kilometer of travel in electromagnetic radiation means a time delay of
330 μs
33 μs
3.3 μs
0.33 μs
⇒ When a normal atom loses an electron
the atom loses one-proton simultaneously
rest of the electrons move faster
the atom becomes a positive ion
the atom becomes a negative ion