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Q1. | Consider the following statements in connection with CMOS inverter in figure where both the MOSFET are of enhancement type and both have a threshold voltage of |

A. | Only statement 1 is true [Correct Answer] |

B. | Only statement 2 is true [Wrong Answer] |

C. | Both the statement are true [Wrong Answer] |

D. | Both the statements are false [Wrong Answer] |

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

⇒ The resistance of a metallic wire would

increase as the operating frequency increase

decrease as the operating frequency increase

remain unaffected on increasing the operating frequency

first increase then decrease

⇒ In modern MOSFET

_{S}, the material used for the gate is

high purity silicon

high purity silica

heavily doped polycrystalline silicon

epitaxial grown silicon

⇒ For an RC admittance function Y, the slope

*d*Y/

*d*σ

is positive

is negative

may be positive or negative

0

⇒ Equation

*x*

_{l0}= 11001001

_{2}when solved for

*x*gives the value of

*x*as

8

111

152

201

⇒ Two currents have the same peak value. Wave 1 is sinusoidal and wave 2 is rectangular. The ratio of their heating effects are

0.0423611111111111

1 : 2

0.0430555555555556

0.000711805555555555

⇒ For a wave propagating in air filled rectangular waveguide.

guide wavelength is never less than free space wavelength.

wave impedance is never less than the free space impedance

TEM mode is possible if the dimension of the waveguide are properly chosen.

propagation constant is a real quantity.

⇒ In a backward wave oscillator the wave

travelling along the line winds itself back and forth

progresses only in forward direction

progresses only in backward direction

either (a) or (c)

⇒ A system is highly oscillatory if

gain margin is high

gain margin is close to 1

gain margin is close to 1 or phase margin is zero

gain margin is high and phase margin is 180°

⇒ A periodic voltage has following values for equal time intervals changing suddenly from one value to next, 0, 5, 10, 20, 50, 60, 50, 20, 10, 5, 0, -5, -10 etc. then rms value of the waveform is

31 volt

32 volt

insufficient data

none

⇒ A lag compensator provides attenuation in

very low frequency range

low frequency range

high frequency range

none of the above

⇒ The function Z(

*s*) has a pole at infinity if

the degree of numerator and denominator of Z(

*s*) are equal

the numerator of Z(

*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

⇒ 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

⇒ In a microprocessor the clock signal

is always generated internally

is always supplied externally

may be generated internally or supplied externally

is mostly supplied externally

⇒ A synchro transmitter receiver unit is a

two phase ac device

3 phase ac device

dc device

1 phase ac device

⇒ The units of the spectrum obtained be Fourier transforming the covariance function of a stationery Stochastic Process is

Power per Hz

energy per Hz

Power per sec

Energy per second

⇒ A 4 bit ripple counter is in 0000 state. The clock pulses are applied and then removed. The counter reads 0011. The number of clock pulses which have occurred are

3

3 or 19

3 or 19 or 35

none of the above

⇒ Which material is generally used for LED?

Compounds of silica

Compounds of gallium

Compounds of phosphorus

Compounds of sulphur

⇒ Gray code is used in devices which convert analog quantities to digital signal because it is

more error free

much simpler than binary code

superior to Excess-3 code

absolutely error free

⇒ A signal is sampled at 8 kHz and is quantized using 8 bit uniform quantizer. Assuming SNR

_{q}for a sinusoidal signal, the correct statement for PCM signal with a bit rate of

*R*is

R = 32 KbPs, SNR

_{q}= 25.8 dB

R = 64 KbPs, SNR

_{q}= 49.8 dB

R = 64 KbPs, SNR

_{q}= 58.8 dB

R = 32 KbPs, SNR

_{q}= 49.8 dB

⇒ In a two stage cascade amplifier, each stage has a gain of 10 dB and noise figure of 10 dB. The overall noise factor is

10

1.09

1

10.9

⇒ The directivity in a receiving antenna

- increases the intercept area in forward direction
- reduces the noise picked up from other sources
- provides a means of discriminating against undesired signals originating in directions other than in which the desired transmitter lies.

1 only

1 and 2 only

1, 2 and 3

2 and 3 only

⇒ The antenna current of an AM transmitter is 8 A, when only the carrier is sent, but it increases to 8.93 A when the carrier is modulated by a single sine wave. Determine the antenna current when the percent of modulation changes to 0.8

9.19 A

9.91 A

10.56 A

8.61 A

⇒ In the circuit, shown the current I marked is give

2.22 A

1.78 A

4.44 A

0.0833333333333333

⇒ The carrier mobility in a semiconductor is 0.4 m

^{2}/Vs. Its diffusion constant at 300k will be (in m

^{2}/s).

0.43

0.16

0.04

0.01

⇒ One XOR gate can work as

one bit magnitude comparator

two bit magnitude comparator

either (a) or (b)

neither (a) nor (b)

⇒ The divergence of a vector is a scalar, while the curl of a vector is another

scalar

vector

unit vector

none of the above

⇒ The area of an impulse is

1

0

∞

any finite value

⇒ The problem of logic race occurs in

SOP functions

POS functions

Hybrid function

SOP and POS functions

⇒ For a second order system with 0 < ξ < 1, the angle which poles make with negative real axis is

sin

^{-1}ξ

cos

^{-1}ξ

tan

^{-1}ξ

cot

^{-1}ξ

⇒ In a JK master slave flip flop race condition does not occur.

TRUE

FALSE