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Consider the following statements
| |
A. | all [Wrong Answer] |
B. | 1 and 2 only [Correct Answer] |
C. | 1, 2 and 3 [Wrong Answer] |
D. | 1, 2 and 4 [Wrong Answer] |
View Answer
Explanation:-
Answer : B Discuss it below : !! OOPS Login [Click here] is required to post your answer/result |
Also Read Similar Questions Below :
⇒ For a MOD-12 counter, the FF has a t_{pd} = 60 ns The NAND gate has a t_{pd} of 25 n sec. The clock frequency is
3.774 MHz
> 3.774 MHz
< 3.774 MHz
4.167 MHz
⇒ When load is coupled to class A amplifier through transformer, efficiency decreases.
TRUE
FALSE
⇒ A counter has a modulus of 10. The number of flip flops is
10
5
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⇒ 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
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image frequency
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⇒ The analog signal given below is sampled by 600 samples per se
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120 Hz
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⇒ 6 bytes means
6 bits
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⇒ Consider a baseband binary PAM receiver shown below. The additive channel noise n(t) is whit with power spectral density S_{N}(f) = N_{0}/2 = 10^{-20} W/Hz. The low-pass filter is ideal with unity gain and cutoff frequency 1 MHz. Let Y_{k} represent the random variable y(t_{k}10^{10}
10^{7}
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⇒ In narrowband FM, the modulation index is
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⇒ Find the electric charge required on the earth and moon to balance their gravitational attraction if the charge on the earth is 12.5 times that on the m
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4.89 GC
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⇒ A dc separately excited motor has constant field current. The armature is fed from a single phase supply through a full converter. When a = 0, speed is 500 rpm. If a = 45°, the speed is likely to be
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⇒ In a megger the moving coil meter has a permanent magnet.
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⇒ Effect of loading of line is
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⇒ Which of the following is used as a passive component in electronic circuits?
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⇒ For a MOD-12 counter, the FF has a t_{pd} = 60 ns The NAND gate has a t_{pd} of 25 n sec. The clock frequency is
3.774 MHz
> 3.774 MHz
< 3.774 MHz
4.167 MHz
⇒ When load is coupled to class A amplifier through transformer, efficiency decreases.
TRUE
FALSE
⇒ A counter has a modulus of 10. The number of flip flops is
10
5
4
3
⇒ 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
⇒ The analog signal given below is sampled by 600 samples per se
600 Hz
120 Hz
300 Hz
360 Hz
⇒ 6 bytes means
6 bits
24 bits
48 bits
96 bits
⇒ Consider a baseband binary PAM receiver shown below. The additive channel noise n(t) is whit with power spectral density S_{N}(f) = N_{0}/2 = 10^{-20} W/Hz. The low-pass filter is ideal with unity gain and cutoff frequency 1 MHz. Let Y_{k} represent the random variable y(t_{k}10^{10}
10^{7}
1.414 x 10^{-10}
2 x 10^{-20}
⇒ In narrowband FM, the modulation index is
near unity
about 100
about 0.1
about 300
⇒ Find the electric charge required on the earth and moon to balance their gravitational attraction if the charge on the earth is 12.5 times that on the m
48.9 TC
4.89 GC
4.89 TC
48.9 GC
⇒ A dc separately excited motor has constant field current. The armature is fed from a single phase supply through a full converter. When a = 0, speed is 500 rpm. If a = 45°, the speed is likely to be
about 350 rpm
about 250 rpm
about 175 rpm
about 125 rpm
⇒ In a megger the moving coil meter has a permanent magnet.
TRUE
FALSE
⇒ In CE approximation, the upper end of d.c. load line is called the __________ point and the lower end is the __________ point.
Q, base
base, Q
saturation, cut off
cut off, saturation
⇒ Phase modulation is commonly-used for data transmission mainly because
phase can be varied from + 180° to 180°
it is resistant to the effects of noise
demodulation is very easy
it gives highest data rates that can be transmitted over a given channel
⇒ The difference between sequential and combinational circuits is
Combinational circuits store bits
Combinational circuits have memory
Sequential circuits store bits
Sequential circuits have memory
⇒ In the basic series inverter circuit, the source current has
low harmonic content
high harmonic content
low or high harmonic content depending on firing angle
zero harmonic content
⇒ Effect of loading of line is
increase in Z_{0}, a and β
increase in Z_{0} and β but decrease in a
decrease in Z_{0}, a and β
decrease in Z_{0} and β but increase in a
⇒ Which of the following is used as a passive component in electronic circuits?
Tunnel diode
Capacitor
Transistor
Vacuum tube
⇒ Zero bias works only with
D MOSFETs
E MOSFETs
both D and E MOSFETs
neither D nor E MOSFETs
⇒ A magnetic field exists around
moving charges
static charges
iron
copper
⇒ Frequency frogging is used in a carrier system to
conserve frequencies
reduce distortion
reduce cross talk
none of the above
⇒ Which of the following is true?
During addition if the carry into and carry out of the sign bit do not match then an overflow has occurred
During addition if the carry into and carry out of the sign bit don't match then an overflow or underflow has occurred
During addition if the carry into and carry out of the sign bit match then an overflow or underflow has occurred
During addition if the carry into and carry out of the sign bit match then an overflow has occurred
⇒ For a D/A converter, inputs and outputs are given. The output corresponding to digital input 01
2.0 V
2.5 V
3.0 V
4.0 V
⇒ A dielectric of relative permittivity ∈_{r} is subjected to a homogeneous electric field E. The dipole moment P per unit volume is given by
P = constant
P = ∈_{0} E
P = ∈_{0}(∈_{r} - 1) E
P = ∈_{r} E
⇒ When a complex signals is used to frequency modulate a carrier, the resulting sideband distribution is
symmetrical about the carrier
not necessarily symmetrical about the carrier
decided by the predominant sidebands
none of the above
⇒ Let JCOKE = 3 and LPEPSI = 5. Consider the statement
1
15
10
⇒ Which of the following devices has a silicon dioxide layer?
NPN transistor
Tunnel diode
JFET
MOSFET
⇒ If we manage to __________ our natural resources, we would leave a better planet for our children.
uphold
restrain
Cherish
conserve
⇒ A Colpitt's oscillator uses
a tapped inductor
an inductor and two capacitors
both (a) and (b)
either (a) or (b)
⇒ In a Hurwitz polynomial
all coefficients are non-negative
the coefficients may be positive or negative
all coefficients are negative
all coefficients are non-negative and all zeros should be either in left half plane or simple on the imaginary axis
⇒ A number given in binary as 0101.01 is to be scaled up 4 times. The scaled up binary is
10101
1.0101
404.04
10.101