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Q1. | In a single stage differential amplifier, the output offset voltage is mainly dependent on the mismatch of |

A. | V_{BE}, I_{B} and β [Wrong Answer] |

B. | V_{BE} and I_{B} [Correct Answer] |

C. | I_{B} and β [Wrong Answer] |

D. | V_{BE} and β [Wrong Answer] |

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

⇒ Capture effect occurs in

AM

FM

PCM

QAM

⇒ The minterm designation for ABCD is

m

_{8}

m

_{10}

m

_{14}

m

_{15}

⇒

*TE*

_{01}mode of propagation of electromagnetic energy

is merely the TE

_{10}mode rotated 90°

is merely the TE

_{10}mode rotated 180°

is the same as TE

_{10}mode

either (b) or (c)

⇒ Vividh Bharati programme is transmitted in

short wave

medium frequency

very high frequency

all of the above

⇒ For the shaded area in Venn diagram of the given figure, the Boolean expressio

AB + BC + CA

ABC + A B C

ABC + A B C

ABC+AB

⇒ In a purely resistive circuit the instantaneous power varies from zero to maximum twice in each cycle.

TRUE

FALSE

⇒ Which of the following is the main difference between waveguide and transmission line?

Waveguides cannot be coupled to coaxial lines

Waveguides have no standing wave ratio

Transmission line does not suffer from the effect of low cut off frequency

Waveguides are not distributed like transmission lines

⇒ Floating gate is fabricated for making MOS

ROM

PROM

EPROM

EAROM

⇒ With an ac input from 50 Hz power line, the ripple frequency is

50 Hz in the dc output of half wave as well as full wave rectifier

100 Hz in the dc output of half wave as well as full wave rectifier

50 Hz in the dc output of half wave and 100 Hz in the dc output of full wave

100 Hz in the dc output of half wave and 50 Hz in the dc output of full wave

⇒ In a TWT the loss in attenuator is

almost equal to forward gain of tube

much less than forward gain of tube

much higher than forward gain of tube

almost infinite

⇒ In a metal, the drift velocity of electrons in the presence of a electric field E is

proportional to E

proportional to E

inversely proportional to E

proportional to E

^{2}

⇒ In the circuit shown in the figure, steady-state was reached when the switch S was open. The switch was closed at

*t*= 0. The initial value of the current through the capacitor 2

zero

0.0416666666666667

0.0833333333333333

0.125

⇒ Spot the odd one out

aluminium

silver

porcelain

copper

⇒ In the given figure the circuits for input impedance of a microwave device with output ports match terminated. The devic

E plane tee

H plane tee

magic tee

hybrid ring

⇒ For an insulating material, dielectric strength and dielectric losses should be

high and high

low and high

high and low

low and low

⇒ Given figure is the voltage transfer characteristi

an N MOS inverter with enhanced mode transistor as load

an N MOS inverter with depletion mode transistor as load

a CMOS inverter

BJT inverter

⇒ Surface impedance at high frequencies is a consideration for

good conductors

semiconductors

dielectrics

ferrites

⇒ The resistance of voltmeter affects the accuracy of measurement in loss of charge method.

TRUE

FALSE

⇒ In plotting line spectrum

a graph of complex number F

_{n}versus frequency is plotted

a graph of |F

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a graph of the angle of F

_{n}versus frequency is plotted

two graphs viz |F

_{n}| versus frequency and the phase angle of F

*n*versus frequency are plotted

⇒ The relation AD - BC = 1 where A, B, C, D are transmission parameters of a network is valid for

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passive but not reciprocal network

passive and reciprocal network

both active and passive networks

⇒ Which is correct with respect to computer memory?

Only a particular address can have a particular memory

Any address can have any memory

To read a word from computer memory, it is not necessary to specify a location

None of the above

⇒ In a conventional AM superhetrodyne receivers, the detectors employed to extract intelligence include

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Ratio detectors

PLL

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⇒ A medium is said to be isotropic when

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⇒ A function Z(

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the degree of numerator and denominator are equal

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*s*) is one degree higher than denominator

the denominator of Z(

*s*) is one degree higher than numerator

the degree of numerator and denominator are either equal or differ by one

⇒ The Gaussian filter characteristic figure is realiza

TRUE

FALSE

⇒ Which of the following is true as regards telephone systems?

A larger facility carrying a larger load operates less efficiently than a smaller capacity

A larger facility carrying a lesser load operates more efficiently than a smaller capacity

A larger facility carrying a larger load operates more efficiently than a smaller capacity

A smaller capacity carrying a larger load operates more efficiently than a larger capacity

⇒ Consider the resonant circuit as shown b

R = 10

^{4}L = 5 μH C = 20 pF

1000 L = 50 μH C = 200 pF

10 K L = 50 μH C =20 pF

None of these

⇒ Two coils having equal resistance but different inductances are connected in series. The time constant of the series combination is

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sum of the time constants of the individual coils

geometric mean of the time constants of individual coils

product of the time constants of the individual coils

⇒ Consider the following features of an instrument

- suitable for both ac and dc
- free from hysteresis and eddy current errors
- No waveform and frequency errors
- it is essentially a voltmeter

moving iron

moving coil

electrostatic

dynamometer

⇒ Acoustic strain gauges

have good linearity of measurement

do not have long term stability

have a large range of measurement

have an accuracy range of 0.1-1% depending on environment