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Q1. | A system has high gain and phase margin. The system is |

A. | very stable [Wrong Answer] |

B. | sluggish [Wrong Answer] |

C. | very stable and sluggish [Correct Answer] |

D. | oscillatory [Wrong Answer] |

View Answer
Explanation:-
Answer : CDiscuss it below :!! OOPS Login [Click here] is required to post your answer/resultHelp other students, write article, leave your comments |

**Also Read Similar Questions Below :**

⇒ For good quality signal transmission all frequency components should have the same transmission delay,

*t*and same phase shift-Φ

_{d}_{s}. What can be said about the statement?

Correct

True from

*t*but not for Φs

_{d}Not true for

*t*but true for Φ

_{d}_{s}

Both

*t*and Φ

_{d}_{s}are not involved in quality

⇒ In a P-N-P transistor, electrons flow

into the transistor at the collector only

into the transistor at the base and the collector leads

out of the transistor at base and collector leads

out of the transistor at base, collector as well as emitter leads

⇒ The decimal equivalent of the binary number 10110.0101011101 is

22.24082165

22.340821675

22.3408213125

22.3408203125

⇒ In PCM the amplitude levels are transmitted in a 7 unit code. Sampling frequency is 10 kHz. The bandwidth should be

5 kHz

35 kHz

70 kHz

5 MHz

⇒ Which of the following is/are correct? The circuit shown in the fig

1 and 3

1 and 2

1 and 4

3 only

⇒ When deflecting torque and braking torque in an energy meter are zero,

the disc rotates at steady speed

the disc is stationary

the disc accelerates

the disc retards

⇒ For a series circuit of R and variable X

_{L}the admittance locus is

a semicircle in first quadrant

a semicircle in fourth quadrant

a straight line in first quadrant

a straight line in fourth quadrant

⇒ Discrete transistors T

_{1}and T

_{2}having maximum collector current rating of 0.75 amp are connected in parallel as shown in the figure, this combination is treated as a single transistor to carry a total current of 1 ampere, when biased with self bias circuit. When the circuit is switched on, T

_{1}draws 0.55 amps and T

_{2}draws 0.45 amps. If the supply is kept on continuously, ultimately it is very likely

Both T

_{1}, and T

_{2}get damaged

Both T

_{1}, and T

_{2}will be safe.

T

_{1}Will get damaged and T

_{2}will be safe

T

_{2}will get damaged and T

_{1}, will be safe.

⇒ The quiescent collector current I

_{C}, and collector to emitter voltage V

_{CE}in a CE connection are the values when

ac signal is zero

ac signal is low

ac signal is negative

either (a) or (b)

⇒ Voltage series feedback (Also called series-shunt feedback) results in

increase in both I/P and O/P impedances

decrease in both I/P and O/P impedances

increase in I/P impedance and decrease in O/P impedance

decrease in I/P impedance and increase in O/P impedance

⇒ When a potential is applied across an intrinsic semiconductor, holes flow

towards positive terminal

away from positive terminal

in the external circuit only

none of the above

⇒ A sample of N-type semiconductor has electron density of 6.25 x 10

^{18}/cm

^{3}at 300k. If the intrinsic concentration of carriers in this sample is 2.5 x 10

^{13}/cm

^{3}at this temperature the hole density works out to be

10

^{6}/cm

^{3}

10

^{8}/cm

^{3}

10

^{10}/cm

^{3}

10

^{l2}/cm

^{3}

⇒ When two conductors carry currents in the same direction the force is repulsive.

TRUE

FALSE

⇒ Boolean algebra obeys

commutative law

associative law

distributive law

commutative, associative and distributive law

⇒ Assuming accumulator contain A 64 and the carry is set (1). What will register A and (CY) contain after XRA A?

A 6 H, 1

A 6 H, 0

00 H, 0

00 H, 1

⇒ A feedback network to be used with an amplifier to provide oscillation is tested and found to give an output of 0.124 V with a 0.5 V input. What percentage negative feedback should be introduced to the amplifier so that linear oscillations result?

0.0125

0.025

-0.0125

-0.025

⇒ Tropospheric scatter is used with frequencies in the range of

VLF

HF

UHF

VHF

⇒ One of the following can be used to generate a pulse whenever triggered

flip-flop

monostable multivibrator

stable multivibrator

Schmitt trigger

⇒ Figure shows a chopper feeding RLE load, The free wheeling diode conducts w

thyristor is on

thyristor is off

both when thyristor is on and thyristor is off

partly when thyristor is off and partly when thyristor is on

⇒ In a 3 phase full converter, the instantaneous output voltage can have negative part if

firing angle is less than 60°

firing angle is less than 90°

firing angle is more than 60°

firing angle is more than 90°

⇒ The function δ' (

*t*-

*b*) is

a step function originating at

*t*=

*b*

an impulse function originating at

*t*=

*b*

a unit doublet originating at =

*t*-

*b*

none of the above

⇒ The no. of FF required and the maximum decimal no. of a MOD-12 counter is

12, 12

4, 11

3, 6

4, 10

⇒ Which of the following computer memories is fastest?

Cache

Primary

Mass storage

Off line back up

⇒ Consider a situation where number of minterms with even number of 0's are same as number of minterms with odd number of 1's. Then minterms with even number of 0's and minterms with odd number of 1's are __________ to each other then number of variables is __________ .

equivalent, even

complement, odd

complement, even

none of these

⇒ In a single phase semiconverter feeding a highly inductive load, the load current is

sinusoidal

nearly constant

absolutely constant

rectangular

⇒ The Lissajous pattern observed on screen of CRO is a straight line inclined at 45° to x axis. If

*X*-plate input is 2 sin ω

*t*, the

*Y*-plate input is

2 sin ω

*t*

2 sin (ω

*t*+ 45°)

2 sin (ω

*t*- 45°)

22 sin ω

*t*+ 45°)

⇒ In AM increased depth of modulation increases __________ and in FM with increased depth of modulation __________ increases.

total transmitted power, bandwidth

bandwidth, bandwidth

bandwidth, total transmitted power

total transmitted power, sideband power

⇒

**Assertion (A):** In Figure, the intercept of the line on *y*-axis is equal to *N* (a_{e} + a_{i}), where *N* is number of atoms/m^{3}, a_{e} is electronic polarizability and a_{i} is ionic polarizability.

**Reason (R):** a_{e} and a_{i} are independent of temperatu

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

⇒ If *r*_{e} is ac resistance of diode, the Thevenin input impedance of a differential amplifier is*r*_{e}

b*r*_{e}

2 b*r*_{e}

0.5 b*r*_{e}

⇒ For the logic circuit given, what is the simplified Boolean funct

X = AB + C

X = BC + A

X = AB + AC

X = AC + B