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Q1. | A system is said to be marginal stable if |

A. | poles lies on Real axis [Wrong Answer] |

B. | zero lies on Real axis [Wrong Answer] |

C. | poles lies on Imaginary axis [Correct Answer] |

D. | zeros lies on origin [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 :**

⇒

Match the following:

List I (Logic family) | List II (Characteristic) | ||
---|---|---|---|

A. | TTL | 1. | Maximum power consumption |

B. | ECL | 2. | Highest packing density |

C. | NMOS | 3. | Least power consumption |

D. | CMOS | 4. | Saturated Logic |

A-1, B-4, C-2, D-3

A-1, B-4, C-3, D-2

A-4, B-1, C-2, D-3

A-4, B-1, C-3, D-2

⇒ In high power AM transmission modulation is done at

IF stage

RF power

buffer stage

oscillator stage

⇒ For circuit in figure, which combination of V

_{TH}and R

_{TH}represents the circuit as seen from

*ab<*

1 V, 10 Ω

1 V, 1000 Ω

1 mV, 1000 Ω

1 mV, 10 Ω

1 V, 10 Ω

1 V, 1000 Ω

1 mV, 1000 Ω

1 mV, 10 Ω

⇒ Computer virus can hide itself in a diskette but not in a hard disk.

TRUE

FALSE

⇒ In the balanced bridge shown in figure.

a self inductance having resistance

a capacitance

a non-inductive resistance

an inductance and capacitance in parallel

⇒ An 8 bit data is to be entered into a parallel in register. The number of clock pulses required is

8

4

2

1

⇒ A line of characteristic impedance 400 Ω is terminated by a resistance of 400 Ω. The reflected quantities are

zero

equal to incident quantities

half the incident quantities

double the incident quantities

⇒ To determine the polarity of voltage drop across a resistor, it is sufficient to know

direction of current through the resistor

direction and magnitude of current through the resistor

direction and magnitude of current and value of resistance

magnitude of current through the resistance

⇒ With respect to the following 555 timer circuit what will be the value of R

⇒ Computer virus can hide itself in a diskette but not in a hard disk.

TRUE

FALSE

⇒ In the balanced bridge shown in figure.

*X*shoulda self inductance having resistance

a capacitance

a non-inductive resistance

an inductance and capacitance in parallel

⇒ An 8 bit data is to be entered into a parallel in register. The number of clock pulses required is

8

4

2

1

⇒ A line of characteristic impedance 400 Ω is terminated by a resistance of 400 Ω. The reflected quantities are

zero

equal to incident quantities

half the incident quantities

double the incident quantities

⇒ To determine the polarity of voltage drop across a resistor, it is sufficient to know

direction of current through the resistor

direction and magnitude of current through the resistor

direction and magnitude of current and value of resistance

magnitude of current through the resistance

⇒ With respect to the following 555 timer circuit what will be the value of R

_{A}and R such that the LED turns on for a duration of 10*ms*every time it receives negative trigger pulse. LED operating current = 20*m*A, V_{f}= 1.4 V, V*o*_{on}= 13.4 V and C = 0.22*nf*

41.4 KΩ, 600 Ω

45 KΩ, 630 Ω

43.5 KΩ, 580 Ω

44.9 KΩ, 600 Ω41.4 KΩ, 600 Ω

45 KΩ, 630 Ω

43.5 KΩ, 580 Ω

44.9 KΩ, 600 Ω

⇒ For a binary half subtractor having two inputs

D = AB + AB, X = AB

D = AB AB, X = AB

D = AB + AB, X = AB

D = AB + A B, X = AB

⇒ The dc output voltage from a power supply

increases with higher values of filter capacitance and decreases with more load current

decreases with higher values of filter capacitance and increases with more load current

decreases with higher values of filter capacitance as well as with more load current

increases with higher values of filter capacitance as well as with more load current

⇒ In CE circuit the parameter

TRUE

FALSE

⇒ In Bode diagrams an octave is a frequency band from

ω

ω

ω

ω

⇒ Which of the following is not a valid real constant?

-73.1

10251,3

10.23

-5.7381

⇒ Typical value of power consumption of TV transmitter is

0.5 kVA

2 kVA

50 kVA

1000 kVA

⇒ As the ratio R

TRUE

FALSE

⇒ In rectifier circuits, ripple factor RF and form factor FF are related as

RF = (FF

RF = FF

RF = FF - 1

RF = (FF - 1)

⇒ Consider the following statements about directional coupler shown in the fi

1 and 2 only

3 and 4 only

1, 2 and 3

2, 3 and 4

⇒ At half power frequencies the current in R-L-C series circuit is __________ times current at resonance

1/3

1/4

1/2

42737

⇒ Consider the following amplifier with negative feed

-9 x 10

9 x 10

-11 x 10

11 x 10

⇒ For broadcasting purpose, full AM signal is preferred to SSB signal because

it requires large bandwidth

generation of full AM is easier

detection of full AM is simpler

none of the above

⇒ In voltage amplifiers, the load resistance

should be a small as possible

should be as large as possible

must be equal to output impedance

must be half of output impedance

⇒ When there is rapid attenuation of field inside the conductor, the field current are concentrated close to the surface of the conductor; this phenomenon is called

skin effect

EM concentration effect

Faraday's effect

Ohm's effect

⇒ The numbers of accelerating anodes in a CRO is

1

2

3

4

⇒ Full duplex operation

requires modems at both ends of circuit

requires two pairs of cables

can transfer data in both directions simultaneously

all of the above

⇒ In 8085 microprocessor, what is the length of PC (program counter)?

6 bits

8 bit

12 bits

16 bits

⇒ A 3 phase fully controlled converter is a

3 pulse converter

6 pulse converter

2 pulse converter

12 pulse converter

⇒ Diffraction of electromagnetic wave

is caused by reflection from the ground

may occur around the edge of a sharp obstacle

arises only with spherical wavefronts

none of these

⇒ In which of the following devices can the operation be visualised in terms of a series feedback loops?

TWT

Reflex klystron

Klystron amplifier

Backward wave oscillator

⇒ The Voltage

2 V

4 V

4/3 V

8 V

⇒ For a binary half subtractor having two inputs

*A*and*B*the correct sets of logical expressions for the outputs*D*(*A*-*B*) and*X*= Borrow areD = AB + AB, X = AB

D = AB AB, X = AB

D = AB + AB, X = AB

D = AB + A B, X = AB

⇒ The dc output voltage from a power supply

increases with higher values of filter capacitance and decreases with more load current

decreases with higher values of filter capacitance and increases with more load current

decreases with higher values of filter capacitance as well as with more load current

increases with higher values of filter capacitance as well as with more load current

⇒ In CE circuit the parameter

*f*_{12}is very small.TRUE

FALSE

⇒ In Bode diagrams an octave is a frequency band from

ω

_{1}to 10 ω_{1}ω

_{1}to 8 ω_{1}ω

_{1}to 4 ω_{1}ω

_{1}to 2 ω_{1}⇒ Which of the following is not a valid real constant?

-73.1

10251,3

10.23

-5.7381

⇒ Typical value of power consumption of TV transmitter is

0.5 kVA

2 kVA

50 kVA

1000 kVA

⇒ As the ratio R

_{f}/R_{L}increases the efficiency of a rectifier increases.TRUE

FALSE

⇒ In rectifier circuits, ripple factor RF and form factor FF are related as

RF = (FF

^{2}- 1)^{0.5}RF = FF

RF = FF - 1

RF = (FF - 1)

^{0.5}⇒ Consider the following statements about directional coupler shown in the fi

1 and 2 only

3 and 4 only

1, 2 and 3

2, 3 and 4

⇒ At half power frequencies the current in R-L-C series circuit is __________ times current at resonance

1/3

1/4

1/2

42737

⇒ Consider the following amplifier with negative feed

-9 x 10

^{-3}9 x 10

^{-3}-11 x 10

^{-3}11 x 10

^{-3}⇒ For broadcasting purpose, full AM signal is preferred to SSB signal because

it requires large bandwidth

generation of full AM is easier

detection of full AM is simpler

none of the above

⇒ In voltage amplifiers, the load resistance

should be a small as possible

should be as large as possible

must be equal to output impedance

must be half of output impedance

⇒ When there is rapid attenuation of field inside the conductor, the field current are concentrated close to the surface of the conductor; this phenomenon is called

skin effect

EM concentration effect

Faraday's effect

Ohm's effect

⇒ The numbers of accelerating anodes in a CRO is

1

2

3

4

⇒ Full duplex operation

requires modems at both ends of circuit

requires two pairs of cables

can transfer data in both directions simultaneously

all of the above

⇒ In 8085 microprocessor, what is the length of PC (program counter)?

6 bits

8 bit

12 bits

16 bits

⇒ A 3 phase fully controlled converter is a

3 pulse converter

6 pulse converter

2 pulse converter

12 pulse converter

⇒ Diffraction of electromagnetic wave

is caused by reflection from the ground

may occur around the edge of a sharp obstacle

arises only with spherical wavefronts

none of these

⇒ In which of the following devices can the operation be visualised in terms of a series feedback loops?

TWT

Reflex klystron

Klystron amplifier

Backward wave oscillator

⇒ The Voltage

*e*_{0}in the figu2 V

4 V

4/3 V

8 V