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Q1. | The distance of poles from origin depends on |

A. | undamped natural frequency [Correct Answer] |

B. | damping ratio [Wrong Answer] |

C. | both (a) and (b) [Wrong Answer] |

D. | neither (a) nor (b) [Wrong Answer] |

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Explanation:-
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**Also Read Similar Questions Below :**

⇒ If the time is counted from the instant when an ac wave is at its peak value, we get a

sine wave

cosine wave

distorted sine wave

none of the above

⇒ Hall effect can be used

to find type of semiconductor (whether

*p*or

*n*)

to find carrier concentration

to measure conductivity

all of the above

⇒ If A = 20 and B = - 7 in PASCAL, A mod B =

6

2

-1

3

⇒ The network shown in figur

reciprocal

reciprocal and symmetrical

non-reciprocal

unsymmetrical

⇒ Which camera tube has highest dark current?

Plumbicon

Vidicon

Saticon

GCD imager

⇒ Two CE stages, 1 and 2 are coupled through a capacitor. V

_{CC}is the same for both. Base resistances R

_{B1}and R

_{B2}are such that R

_{B1}> R

_{B2}. Then

base currents for both stages are equal

base current of stage 1 is more than that of stage 2

base current of stage 2 is more than that of stage 1

either (b) or (c)

⇒ The classes of solid dielectrics are

A, B, C, D, E, F, H

A E B F H C D

Y A E B F H C

A E B F H C

⇒ A rectifier voltmeter using bridge rectifier and PMMC meter is calibrated to read rms value of sine wave. A triangular wave is applied to it and it reads 6.82 V. The rms value of triangular wave is

about 6.82 V

about 7.1 V

about 6.5 V

about 10 V

⇒ Which statement is incorrect for the signal

*x*(

*t*) = 5 sin (2p x 10

^{3}

*t*) sin (2p x 10

^{6}

*t*)?

Upper side band frequency is 1001000

Carrier amplitude is 5

Lower sideband frequency is 990000

*x*(

*t*) is DSB-SC

⇒ The function of duplexer in a RADAR is

to permit the use of same antenna for transmission and reception

to provide gain to the transmitted power

to amplify the received signal

both (b) and (c)

⇒ For a semiconductor, the conductivity is a function of the products of the number of charge carriers and their mobilites. As result, if the temperature of a slab of intrinsic silicon increases, how does its conductivity vary?

Decreases

Increases

Remains unaffected

Increases or decreases depending upon the rise in temperature

⇒ When the mains supply is switched off the contents of primary computer memory are lost.

TRUE

FALSE

⇒ In standard TTL, the 'totem pole' stage refers to

the multi-emitter I/P stage

phase splitter

the O/P buffer

open collector O/P stage

⇒ The number of flip-flops needed to divide the input frequency by 32 is

2

4

5

16

⇒ The function (

*s*+ 2) (

*s*+ 4)/[(

*s*+ 1)(

*s*+ 3)]

is a reactance function

is an RC function

may be a reactance function or an RC function

may be RC function or an RL function

⇒ In a zener diode

the forward current is very high

sharp breakdown occurs at a certain reverse voltage

the ratio

*v*-

*i*can be negative

there are two

*p*-

*n*junctions

⇒ Magnetic effect of current is used in

ammeters

voltmeters

wattmeters

ammeters, voltmeters, wattmeters and energy meters

⇒ For a junction FET in the pinch off region as the drain voltage is increased, the drain current

becomes zero

abruptly decreases

abruptly increases

remains constant

⇒ In a resistive ac circuit, the current __________ the voltage by __________ .

lags, 90°

lags, 45°

lags, 0°

leads 90°

⇒ When an electron breaks a covalent bond and moves away,

a hole is created

a proton is also lost

atom becomes an ion

rest of the electron move at a faster rate

⇒

Match the following:

List I | List II | ||
---|---|---|---|

A. | Detection of a periodic signal in noise | 1. | Increase in band-width |

B. | Recovery of a band limited signal from its uniformly sampled values | 2. | Slope over load error |

C. | Finer quantization | 3. | Nyquist rate of signals |

D. | Delta modulation | 4. | Cross correlation |

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

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

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

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

⇒ If

*f*(-

*t*) =

*f*(

*t*), the function

*f*(

*t*) has only cosine terms.

TRUE

FALSE

⇒ An RLC series circuit is excited by an ac voltage

*v*= 1 sin

*t*. If L = 10 H, C = 0.1 F peak value of voltage across R is

0.707 V

1 V

1.44 V

indeterminate as value of R is not given

⇒ In

*p*type semiconductor holes are majority carriers.

TRUE

FALSE

⇒ A casual LTI system is described by the difference equat

|a| = 2 |β| < 2

|a| > 2 |β| > 2

|a| < 2 any value of β

|β| < 2, any value of a

⇒ A memory system of size 16 K bytes is required to be designed using memory chips having 12 address lines and 4 data lines-each. The number of such chips required to design and the memory system is :

2

4

8

16

⇒ The maximum phase difference between the applied voltage and current in a RLC series current with finite values of R, L, C, and

*f*can be

less than 90°

less than 45°

180°

30°

⇒ A line has standing waves with a voltage maximum of 35 mV and minimum of 17.5 mV VSWR is

2

4

0.5

0.25

⇒ Consider the following materials

- Nickel
- Silver
- Oxygen
- Aluminium

1, 4, 3, 2

1, 4, 2, 3

4, 1, 3, 2

4, 1, 2, 3

⇒ In which

*n*type device does

*p*substrate extend upto silicon dioxide layer?

JFET

Depletion type MOSFET

Enhancement type MOSFET

Both (b) and (c)