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Assertion (A): Nyquist stability criterion uses the number of encirclements around (-1 + j0) point in GH plane to determine stability Reason (R): The (-1 + j0) point in the s plane lies in the Nyquist path. | |
A. | Both A and R are correct and R is correct explanation of A [Wrong Answer] |
B. | Both A and R are correct but R is not correct explanation of A [Wrong Answer] |
C. | A is correct but R is wrong [Correct Answer] |
D. | R is correct but A is wrong [Wrong Answer] |
View Answer
Explanation:-
Answer : C Discuss it below : !! OOPS Login [Click here] is required to post your answer/result |
Also Read Similar Questions Below :
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⇒ A 'n' bit sequence generator employing SR flip-flop has maximum length of the sequence as :
2^{n}
n
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⇒ Natural commutation can be used in :
DC circuits only
AC circuits only
both AC and DC circuits
none of the above
⇒ For input and later stages, BI-FET op-amp use
JFETs and MOSFETs respectively
MOSFETs and JFETs respectively
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BJTs and JFETs respectively
⇒ Parallel adder is
sequential circuit
combinational circuit
either sequential or combinational circuit
none of the above
⇒ At t = ∞; V_{R2} and V_{C} wil
4, 4
2, 4
0, 2
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⇒ The most commonly used transistor amplifier circuit is
CB
CC
CE
CE or CC
⇒ If we need a device to shut off a few ampere current in a few nano seconds, the proper devices is
VMOS
CMOS
BJT
UJT
⇒ The pole zero diagram of an impedance Z has a pole at s = - 6 and zero at s = - 4 as shown in figure the constant multiplier k = 1. For a signal I_{s} = cos 6t, the steady state voltage across Z is given in magnitude as u
0.6
0.84
7.2
none
⇒ In standard TTL the totem pole stage refers to
multiemitter input stage
phase splitter
output buffer
open collector output stage
⇒ In 8085, high level on INTR line can be recognised only if
TRAP and RST lines are high
TRAP and RST lines are not high
TRAP line is high but not RST line
RST line is high but not TRAP line
⇒ A pure tone at 1000 Hz has a dB level of 50 dB. If two such tones exist simultaneously the dB level is about
50 dB
53 dB
100 dB
200 dB
⇒ As per BIS, the number of accuracy classes of instrument is
5
6
7
8
⇒ Two similar mutually coupled coils have a total inductance of 900 mH and coefficient of coupling 0.5. The self inductance of each coils is
300 mH
150 mH
75 mH
50 mH
⇒ In N-type semiconductor
electrons are majority carriers while holes are minority carriers
electrons are majority carriers while holes are majority carriers
both electrons as well as holes are majority carriers
both electrons as well as holes are minority carriers
⇒ In a perfect conductor the resistor noise is
maximum
zero
very high
almost infinite
⇒ Modelling error may occur due to
neglecting the nonlinear characteristics of plant
inaccuracy of parameters
change of plant characteristics with time
any of the above
⇒ A NOR gate is a combination of
OR gate and AND gate
AND gate and NOT gate
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Match the following:
List I | List II | ||
---|---|---|---|
A. | Serial Binary adder | 1. | (2n - 1)t_{pd} |
B. | Ripple carry adder | 2. | (n - 1)t_{pd} |
C. | Carry look ahead binary adder | 3. | Operation time independent of size |
4. | 6t_{pd} for 4 bit carry look ahead adder |
A-2, B-1, C-3
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A-1, B-2, C-4
A-1, B-2, C-3
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e^{as} F(s)
e^{-as} F(s)
- e^{as} F(s)
- e ^{-as} F(s)
⇒ The circuit in the given figur
half adder
full adder
half subtractor
full subtractor
⇒ IC 74181 is a 4 bit device.
TRUE
FALSE
⇒ As regards ∈_{0} and ∈_{r} (absolute and relative permittivity)
both ∈_{0} and ∈_{r} can be interpreted in terms of atomic properties of medium
only ∈_{r} can be interpreted in terms of atomic properties of medium
only ∈_{0} can be interpreted in terms of atomic properties
∈_{r} has no physical significance
⇒ In a dual converter both converters work as rectifiers.
TRUE
FALSE
⇒ Which of the following diode is designed to operate in the breakdown region?
Signal diode
Power diode
Zener diode
None of the above
⇒ As B is increased from zero to about 2T, μ_{r}, of a ferromagnetic material
increase
decrease
first increases then decreases
remains the same
⇒ For a quadratic factor in denominator of transfer function the phase angle at corner frequency (in Bode phase angle plot)
is -90°
is +90°
depends on the damping factor
none of the above
⇒ The power to the base unit of a cordless telephone is supplied by
battery
AC mains
both battery and AC mains
either battery or AC mains
⇒ The magnetic field due to current I equals
I/2 pr
I/4 pr
I^{2}/2 pr
I^{2}/4 pr