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Consider the following statements regarding negative feedback
| |
A. | all [Wrong Answer] |
B. | 1, 2 [Wrong Answer] |
C. | 1, 3 [Wrong Answer] |
D. | 1 only [Correct Answer] |
View Answer
Explanation:-
Answer : D Discuss it below : !! OOPS Login [Click here] is required to post your answer/result |
Also Read Similar Questions Below :
⇒ When a diode is forward biased, the diode current is
high
low
zero
low or zero
⇒ The voltage transfer functions of two port circuits connected in cascade can be easily found from
product of individual ABCD matrices
product of voltage transfer functions of two networks
sum of z matrices
sum of h matrices
⇒ A thyristor has a maximum allowable junction temperature of 120°C and the ambient temperature is 40°C. If thermal resistance is 1.6° C/W, the maximum allowable internal power dissipation is
20 W
50 W
92 W
128 W
⇒ Which of the following parameters is not specified for digital ICs?
Gate dissipation
Propagation delay
Noise margin
Bandwidth
⇒ A memory system has a 9 chips. If MTBF of one clip is 900 000 hours, MTBF of complete memory system is
900000 hours
100000 hours
8100000 hours
1800000 hours
⇒ Consider the following in C
All
1 and 2 only
1 and 3 only
2 and 3 only
⇒ The baud rate is
not equal to signalling rate
always equal to bit transfer rate
equal to twice the bandwidth of an ideal channel
equal to half the bandwidth of ideal channel
⇒ The numerical value of directive gain may lie between
1 and + 1
0 and 1
0 and ∞
1 and ∞
⇒ Which of the following is not correct in respect of electrostatic instrument?
It is essentially a voltmeter
It is suitable for only high voltages
It has a uniform scale
It can be used for both ac and dc
⇒ 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
⇒ Cells are connected in series to increase
current-rating
both voltage and current rating
the life of cell
voltage rating
⇒
A-1, B-2, C-3, D-4
A-4, B-2, C-1, D-3
A-2, B-3, C-4, D-1
A-3, B-2, C-1, D-4
⇒ The op amp is used in
A/D converters
D/A converters
both (a) and (b)
shift registers
⇒ In 8085 microprocessor, which of the following interrupts has the highest priority?
RST 5.5
RST 7.5
TRAP
INTR
⇒ The circuit shown depic
voltage series negative feedback
voltage shunt negative feedback
current series negative feedback
current shunt negative feedback
⇒ In the signal flow graph of figure, y/x equ
3
42857
2
None of the above
⇒ The radiation resistance of a resonant long wire antenna of half wavelength (λ/2) is given
73 Ω
120 p
377 Ω
7.3 Ω
⇒ A planar graph has 6 nodes and 7 branches. The number of meshes in the dual graph is
2
3
4
6
⇒ Consider an input x(t) as sh
-2 < t < 6
0 < t < 11
-2 < t < 5
2 < t < 6
⇒ A linear discrete time system has the char. equation z^{3} - 0.81z = 0, the system is
stable
marginally stable
unstable
stability cannot be assessed from the given information
⇒ A heterodyne frequency changer is called a
Modulator
Mixer
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⇒ IF V_{CC} = 15 V, V_{CEQ} = 5 V and I_{CQ} = 50 mA, the efficiency in class A operation is
1
0.5
0.25
0.167
⇒ Trap circuits used in video IF amplifier of colour TV are
High Q, LC resonant circuit
Low Q, LC resonant circuit
High Q, RLC resonant circuit
Low Q, RLC resonant circuit
⇒ Consider the following expression for the driving point imped
2 and 4
1 and 3
1 and 4
2 and 3
⇒ The number of tightly bound electrons in silicon atom are
14
10
6
4
⇒ The circuit shown in the figure is best described
bridge rectifier
ring modulator
frequency discriminator
voltage doubler
⇒
Both A and R are true and R is correct explanation of A
Both A and R are true but R is not correct explanation of A
A is true but R is false
A is false but R is true
⇒ For BJT, under saturation condition
I_{C} = βI_{B}
I_{C} > bI_{B}
I_{C} is independent of all other parameters
I_{C} < βI_{B}
⇒ Which of the following quantities have same dimension in emu and esu?
1 only
1 and 2
2 and 3
1 and 3
⇒ The contents of F register in 8085 are 01010001. This means
S = 0, Z = 1, AC = 1, P = 0 and CY=1
S = 1, Z = 1, AC = 1, P = 0 and CY=1
S = 1, Z = 0, AC = 1, P = 0 and CY=1
S = 1, Z = 0, AC = 0, P = 0 and CY=1
⇒ When a diode is forward biased, the diode current is
high
low
zero
low or zero
⇒ The voltage transfer functions of two port circuits connected in cascade can be easily found from
product of individual ABCD matrices
product of voltage transfer functions of two networks
sum of z matrices
sum of h matrices
⇒ A thyristor has a maximum allowable junction temperature of 120°C and the ambient temperature is 40°C. If thermal resistance is 1.6° C/W, the maximum allowable internal power dissipation is
20 W
50 W
92 W
128 W
⇒ Which of the following parameters is not specified for digital ICs?
Gate dissipation
Propagation delay
Noise margin
Bandwidth
⇒ A memory system has a 9 chips. If MTBF of one clip is 900 000 hours, MTBF of complete memory system is
900000 hours
100000 hours
8100000 hours
1800000 hours
⇒ Consider the following in C
- Arithmetic operations can be performed on ints.
- Arithmetic operations can be performed on floats.
- Arithmetic operation can be performed on chars
All
1 and 2 only
1 and 3 only
2 and 3 only
⇒ The baud rate is
not equal to signalling rate
always equal to bit transfer rate
equal to twice the bandwidth of an ideal channel
equal to half the bandwidth of ideal channel
⇒ The numerical value of directive gain may lie between
1 and + 1
0 and 1
0 and ∞
1 and ∞
⇒ Which of the following is not correct in respect of electrostatic instrument?
It is essentially a voltmeter
It is suitable for only high voltages
It has a uniform scale
It can be used for both ac and dc
⇒ 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
⇒ Cells are connected in series to increase
current-rating
both voltage and current rating
the life of cell
voltage rating
⇒
Match the following:
List I | List II | ||
---|---|---|---|
A. | Direct addressing | 1. | MOV A, M |
B. | Register addressing | 2. | MOV C, A |
C. | Register indirect addressing | 3. | LDA 7 |
D. | Immediate addressing | 4. | STA FFC |
A-1, B-2, C-3, D-4
A-4, B-2, C-1, D-3
A-2, B-3, C-4, D-1
A-3, B-2, C-1, D-4
⇒ The op amp is used in
A/D converters
D/A converters
both (a) and (b)
shift registers
⇒ In 8085 microprocessor, which of the following interrupts has the highest priority?
RST 5.5
RST 7.5
TRAP
INTR
⇒ The circuit shown depic
voltage series negative feedback
voltage shunt negative feedback
current series negative feedback
current shunt negative feedback
⇒ In the signal flow graph of figure, y/x equ
3
42857
2
None of the above
⇒ The radiation resistance of a resonant long wire antenna of half wavelength (λ/2) is given
73 Ω
120 p
377 Ω
7.3 Ω
⇒ A planar graph has 6 nodes and 7 branches. The number of meshes in the dual graph is
2
3
4
6
⇒ Consider an input x(t) as sh
-2 < t < 6
0 < t < 11
-2 < t < 5
2 < t < 6
⇒ A linear discrete time system has the char. equation z^{3} - 0.81z = 0, the system is
stable
marginally stable
unstable
stability cannot be assessed from the given information
⇒ A heterodyne frequency changer is called a
Modulator
Mixer
Demodulator
Frequency translator
⇒ IF V_{CC} = 15 V, V_{CEQ} = 5 V and I_{CQ} = 50 mA, the efficiency in class A operation is
1
0.5
0.25
0.167
⇒ Trap circuits used in video IF amplifier of colour TV are
High Q, LC resonant circuit
Low Q, LC resonant circuit
High Q, RLC resonant circuit
Low Q, RLC resonant circuit
⇒ Consider the following expression for the driving point imped
2 and 4
1 and 3
1 and 4
2 and 3
⇒ The number of tightly bound electrons in silicon atom are
14
10
6
4
⇒ The circuit shown in the figure is best described
bridge rectifier
ring modulator
frequency discriminator
voltage doubler
⇒
Assertion (A): Electronic polarizability increases as atoms becomes larger.
Reason (R): For rare gas, ∈_{0}(∈_{r} - 1) E = Na_{e}, where N is number of atoms/m^{3} and a_{e} is electronic polarizability of material.
Both A and R are true and R is correct explanation of A
Both A and R are true but R is not correct explanation of A
A is true but R is false
A is false but R is true
⇒ For BJT, under saturation condition
I_{C} = βI_{B}
I_{C} > bI_{B}
I_{C} is independent of all other parameters
I_{C} < βI_{B}
⇒ Which of the following quantities have same dimension in emu and esu?
- Current
- Electrical power
- Electrical energy
1 only
1 and 2
2 and 3
1 and 3
⇒ The contents of F register in 8085 are 01010001. This means
S = 0, Z = 1, AC = 1, P = 0 and CY=1
S = 1, Z = 1, AC = 1, P = 0 and CY=1
S = 1, Z = 0, AC = 1, P = 0 and CY=1
S = 1, Z = 0, AC = 0, P = 0 and CY=1