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A 1 ms pulse can be stretched to 1 sec pulse by using | |
A. | an astable multivibrator [Wrong Answer] |
B. | a monostable multivibrator [Correct Answer] |
C. | a bistable multivibrator [Wrong Answer] |
D. | a Schmitt trigger circuit [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 :
⇒
A-5, B-1, C-6, D-4
A-4, B-6, C-1, D-5
A-4, B-1, C-6, D-2
A-6, B-3, C-4, D-2
⇒ Phase velocity of waves propagating in a hollow metal waveguide is
greater than the group velocity
less than the velocity of light in free space
equal to the velocity of light in free space
equal to group velocity
⇒ For FM, which of the following statement is not true?
The bandwidth increases as modulation index is increased
The total power remains constant with respect to modulation index
The carrier never becomes zero
All of the above
⇒ The number of protons in a silicon atom is
32
28
14
4
⇒ Antenna is a __________ element
passive
active
resistive
capacitive
⇒ The ROC of sequence x[n] = (0.8)^{n} ∪[n] + (0.4)^{n} ∪[n]
|z| > 0.8
|z| > 0.4
0.4 < |z| < 0.8
|z| < 0.8
⇒ In figure, the current I_{410 ∠05 ∠90°5 ∠270°10 ∠90°}
⇒ Symbol shown in figure represen
P-channel DMOSFET
N-channel DMOSFET
UJT with P-type base
UJT with N-type base
⇒
Both A and R are true and R is correct explanation of A
Both A and R are true and R is not the correct explanation of A
A is true but R is false
A is false but R is true
⇒ Consider the following statements regarding sources or error in a Q-meter:
1, 2 and 3
1 and 2 only
2 and 3 only
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⇒ The feedback control system shown in figure is stable for what values of K and
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K > 0, T > 0
K > 0, T > - 1
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⇒ For the same length of arrays, half power beam-width of binomial array
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⇒ The light output of LED varies as (current)^{n}. The value of n is about
0.5
1
1.3
2.1
⇒ For a good voltage amplifier, its input impedance should be
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always capacitive
⇒ The effect of current shunt feedback in an amplifier is to
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increase both I/P and O/P resistance
decrease both I/P and O/P resistance
decrease the I/P resistance and increase O/P resistance
⇒ In figure, the current supplied by battery immediately after switching on the circui
0.0416666666666667
0.166666666666667
0.416666666666667
0
⇒ The HV and other voltage supplies for a TV receiver are obtained from IHVT. The full name for this device is
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Integrated high voltage transformer
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⇒ An amplifier with loop gain Aβ will be more stable for value of Aβ as
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0.7
1.2
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⇒ Beamwidth (between first nulls) will be for an antenna at 3 MHz with directivity of 100
140°
70°
210°
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⇒ If a short line is terminated in characteristic impedance it behaves as an infinite line.
TRUE
FALSE
⇒ For dielectrics in alternating field, polarizability a_{e} is a complex quantity. The imaginary part of a_{e} is zero for
ω = 0
ω → ∞
ω = 0 and ω → ∞
ω = natural frequency ω_{0}
⇒ Which of the following parameters of CE circuit has the unit of ohms?
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h_{re}
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h_{oe}
⇒ The attenuation in waveguide above to cut off frequency
very high
very low
zero
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⇒ Assume that x = 5 and y = 2. Then in Java operation x + = y, the result is
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⇒ ICs are
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⇒ If p is the probability of success and q is the probability of failure, then the probability that there are r successes in n trails is
^{n}c_{r} p^{r} q^{n} ^{-} ^{r}
^{n}c_{r} p^{n -} ^{r} q^{r}
^{n}c_{r} p^{r} q^{n} ^{+} ^{r}
^{n}c_{r} p^{n} q^{n} ^{- r}
⇒ Some of MOS families are PMOS, NMOS, CMOS. The family dominating the LSI field where low power consumption is necessary is
NMOS
CMOS
PMOS
both NMOS and CMOS
⇒ A dynamic RAM cell which holds 5 V has to be refreshed every 20 ms so that the stored voltage does not fall by more than 0.5 V. If the cell has a constant discharge current of 0.1 pA, the storage capacitance of cell is
4 x 10^{-6} F
4 x 10^{-9} F
4 x 10^{-12} F
4 x 10^{-15} F
⇒ A 14 pin NOT gate 1C has __________ NOT gates.
8
6
5
4
⇒ The static electric field in a conductor is
zero
unity
infinity
none of the above
⇒
Match the following:
List I | List II | ||
---|---|---|---|
A. | FM | 1. | slope-overload |
B. | DM | 2. | μ law |
C. | PSK | 3. | Envelope detector |
D. | PCM | 4. | Capture effect |
5. | Hilbert transform | ||
6. | Matched filter. |
A-5, B-1, C-6, D-4
A-4, B-6, C-1, D-5
A-4, B-1, C-6, D-2
A-6, B-3, C-4, D-2
⇒ Phase velocity of waves propagating in a hollow metal waveguide is
greater than the group velocity
less than the velocity of light in free space
equal to the velocity of light in free space
equal to group velocity
⇒ For FM, which of the following statement is not true?
The bandwidth increases as modulation index is increased
The total power remains constant with respect to modulation index
The carrier never becomes zero
All of the above
⇒ The number of protons in a silicon atom is
32
28
14
4
⇒ Antenna is a __________ element
passive
active
resistive
capacitive
⇒ The ROC of sequence x[n] = (0.8)^{n} ∪[n] + (0.4)^{n} ∪[n]
|z| > 0.8
|z| > 0.4
0.4 < |z| < 0.8
|z| < 0.8
⇒ In figure, the current I_{410 ∠05 ∠90°5 ∠270°10 ∠90°}
⇒ Symbol shown in figure represen
P-channel DMOSFET
N-channel DMOSFET
UJT with P-type base
UJT with N-type base
⇒
Assertion (A): The response of a network to unit impulse can be obtained directly from the network function.
Reason (R): The response of a network for any input can be obtained from impulse response.
Both A and R are true and R is correct explanation of A
Both A and R are true and R is not the correct explanation of A
A is true but R is false
A is false but R is true
⇒ Consider the following statements regarding sources or error in a Q-meter:
- If a coil with resistance R is connected in direct measurement mode and if the residual resistance of Q-meter is 0.1 R, then the measure Q of the coil would be 1.1 times the actual Q.
- If the inductance to be measured is less than 0.1 mH, the error due to presence of residual inductance cannot be neglected.
- The presence of distributed capacitance in a coil modifies the effective Q of the coil.
1, 2 and 3
1 and 2 only
2 and 3 only
1 and 3 only
⇒ The feedback control system shown in figure is stable for what values of K and
K < 0, T > - 1
K > 0, T > 0
K > 0, T > - 1
K < 0, T > 0
⇒ For the same length of arrays, half power beam-width of binomial array
is equal to that of uniform arrays
is less than that of uniform array
is more than that of uniform array
is negligible as compared to that of uniform array
⇒ The light output of LED varies as (current)^{n}. The value of n is about
0.5
1
1.3
2.1
⇒ For a good voltage amplifier, its input impedance should be
low as compared to the resistance of the source
high as compared to the resistance of the source
always inductive
always capacitive
⇒ The effect of current shunt feedback in an amplifier is to
increase the I/P resistance and decrease the O/P resistance
increase both I/P and O/P resistance
decrease both I/P and O/P resistance
decrease the I/P resistance and increase O/P resistance
⇒ In figure, the current supplied by battery immediately after switching on the circui
0.0416666666666667
0.166666666666667
0.416666666666667
0
⇒ The HV and other voltage supplies for a TV receiver are obtained from IHVT. The full name for this device is
Internal high voltage transformer
Integrated high voltage transformer
Instant high voltage transformer
Interleaved high voltage transformer
⇒ An amplifier with loop gain Aβ will be more stable for value of Aβ as
0.95
0.7
1.2
1.5
⇒ Beamwidth (between first nulls) will be for an antenna at 3 MHz with directivity of 100
140°
70°
210°
60°
⇒ If a short line is terminated in characteristic impedance it behaves as an infinite line.
TRUE
FALSE
⇒ For dielectrics in alternating field, polarizability a_{e} is a complex quantity. The imaginary part of a_{e} is zero for
ω = 0
ω → ∞
ω = 0 and ω → ∞
ω = natural frequency ω_{0}
⇒ Which of the following parameters of CE circuit has the unit of ohms?
h_{ie}
h_{re}
h_{fe}
h_{oe}
⇒ The attenuation in waveguide above to cut off frequency
very high
very low
zero
infinite
⇒ Assume that x = 5 and y = 2. Then in Java operation x + = y, the result is
x = 7
x = 2
x = 3
x = 2
⇒ ICs are
analog
digital
both analog and digital
mostly analog
⇒ If p is the probability of success and q is the probability of failure, then the probability that there are r successes in n trails is
^{n}c_{r} p^{r} q^{n} ^{-} ^{r}
^{n}c_{r} p^{n -} ^{r} q^{r}
^{n}c_{r} p^{r} q^{n} ^{+} ^{r}
^{n}c_{r} p^{n} q^{n} ^{- r}
⇒ Some of MOS families are PMOS, NMOS, CMOS. The family dominating the LSI field where low power consumption is necessary is
NMOS
CMOS
PMOS
both NMOS and CMOS
⇒ A dynamic RAM cell which holds 5 V has to be refreshed every 20 ms so that the stored voltage does not fall by more than 0.5 V. If the cell has a constant discharge current of 0.1 pA, the storage capacitance of cell is
4 x 10^{-6} F
4 x 10^{-9} F
4 x 10^{-12} F
4 x 10^{-15} F
⇒ A 14 pin NOT gate 1C has __________ NOT gates.
8
6
5
4
⇒ The static electric field in a conductor is
zero
unity
infinity
none of the above