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Q1. | The logic realized by the circuit shown in fi |

A. | F = A ⊙ C [Wrong Answer] |

B. | F = A ⊕ C [Correct Answer] |

C. | F = B ⊙ C [Wrong Answer] |

D. | F = B ⊕ C [Wrong Answer] |

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

⇒ If

*f*

_{1}(

*t*)<<

*F*(

_{1}*j*ω) and

*f*

_{2}(

*t*)↔ F

_{2}(

*j*ω), then [

*a*

_{1}

*f*

_{1}(

*t*) + a

_{2}

*f*

_{2}(

*t*)]↔

*a*

_{1}F

_{1}(

*j*ω) +

*a*

_{2}F

_{2}(

*j*ω)

*a*

_{1}

*a*

_{2}F

_{1}(

*j*ω) + F

_{2}(

*j*ω)

*a*

_{1}F

_{1}(

*j*ω) -

*a*

_{2}F

_{2}(

*j*ω)

*a*

_{1}F

_{1}*(

*j*ω) +

*a*

_{2}F

_{2}*(

*j*ω)

⇒ A buffer amplifier should have

high output impedance and high input impedance

high output impedance and low input impedance

low output impedance an low input impedance

low output impedance and high input impedance

⇒ Oscillator with best frequency stability is

Crystal oscillator

Phase shift oscillator

Clapp oscillator

Hartley oscillator

⇒ In a uniformly doped BJT, assume that N

_{E}, N

_{B}and N

_{C}are the emitter, base and collector dopings in atoms/cm

^{3}, respectively. If the emitter injection efficiency of the BJT is close unity, which one of the following conditions is TRUE?

N

_{E}= N

_{B}= N

_{C}

N

_{E}>> N

_{B}and N

_{B}> N

_{C}

N

_{E}= N

_{B}and N

_{B}< N

_{C}

N

_{E}< N

_{B}< N

_{C}

⇒ A first order system will never be able to give a __________ response.

- Band pass
- Band reject
- All pass

1, 2 and 3 are true

1 and 3 are true, 2 is false

1 and 2 are false, 3 is true

1 and 2 are true, 3 is false

⇒ If a microcomputer has a 64 K memory; what is the hexadecimal notations for the first memory location?

AAAA

FFFF

AAA0

0

⇒ Two port Z parameter not exist for the circuit if

Δ

*z*= 0

Δ

*z*

Δ

*z*= 1

always exist

⇒ An ohmmeter is a

moving coil instrument

moving iron instrument

dynamometer instrument

induction instrument

⇒ Consider the following statemen

1, 2, 3, 4

1, 2, 3

1, 2

1, 3, 4

⇒ TTL logic is preferred to DRL logic because

greater fan-out is possible

greater logic levels are possible

greater fan-in is possible

less power consumption is achieve

⇒ Two independence parameters Z

_{11}and Z

_{12}of the two-port network in the figure

Z

_{11}= 2.75 Ω and Z

_{12}= 0.25 Ω

Z

_{11}= 3 Ω and Z

_{12}= 0.5 Ω

Z

_{11}= 3 Ω and Z

_{12}= 0.25 Ω

Z

_{11}= 2.25 Ω and Z

_{12}= 0.5 Ω

⇒ The time base generator in a CRO gives an output which is

low frequency sinusoidal

high frequency sinusoidal

low frequency rectangular

high frequency sawtooth

⇒ A sinusoidal carrier voltage, having frequency 1000 Hz is amplitude modulated by a sinusoidal voltage of frequency 15 kHz. The frequency of upper and lower sidebands will be

1015 kHz and 985 kHz

1030 kHz and 970 kHz

13 kHz and 17 kHz

14 kHz and 16 kHz

⇒ Δ

^{2}V = - r/E is known as __________ equation

Poisson

Fourier

Laplace

Maxwell

⇒ Mobility of electrons and holes are equal.

TRUE

FALSE

⇒ Consider the following expressions in J

42, 40, 42 respectively

42, 42, 42 respectively

40, 42, 42 respectively

40, 40, 42 respectively

⇒ Which of the following input is not possible in case of a SR flip-flop?

S = 0, R = 0

S = 0, R = 1

S = 1, R = 0

S = 1, R = 1

⇒ The duty cycle of a radar transmitter is equal to

(PRF) (pulse width)

(PRF)/(pulse width)

(pulse width)/(PRF)

(pulse width) + (PRF)

⇒ A Clapp's oscillator is

a modified Hartley oscillator

a modified Colpitt's oscillator

a modified RC oscillator

none of the above

⇒ Junction temperature is always the same as room temperature.

TRUE

FALSE

⇒ Out of the three transforms viz. Z-transform, Laplace transform and Fourier transform

all three are used in continuous time domain

all three are used in both continuous time domain and discrete time domain

Z transform is used in continuous time domain while Laplace and Fourier transforms are used in discrete time domain

Z transform is used is discrete time domain while Laplace and Fourier transforms are used in continuous time domain

⇒ Choose the correct statement/statements :

In case of an antenna, the antenna resistance and loss resistance are not two different quantities.

The loss resistance includes loss by eddy currents, improper earth connections, insulation leakages, etc., but not

*I*

^{2}

*R*losses.

Radiation resistance varies directly as square-root of frequency

None

⇒ The basic amplifier in Weinbridge oscillator consists of

CE stage followed by CE

CE stage followed by CB

CB stage followed by CE

CC stage followed by CE

⇒ When a material is in superconducting state and a magnetic field is applied

the superconducting property is not affected

the superconducting property may be affected and resistivity may increase from zero to a low value

the superconducting property may be destroyed

the material may become an insulator

⇒ Which gives minimum probability of error?

ASK

FSK

PSK

DPSK

⇒ One limitation of constant

*k*filters is that Z

_{0}is not constant in the pass band.

TRUE

FALSE

⇒ Find R

_{TH200 Ω0 Ω400 ΩNone of these}

⇒ A 3 phase semiconverter when supplying a certain load has a rectification efficiency of 0.6 and transformer utilisation factor of 0.35. When a 3 phase full converter is supplying the same load

rectification efficiency will be more than 0.6 and TUF will be more than 0.35

rectification efficiency will be more than 0.6 but TUF will be less than 0.35

rectification efficiency will be less than 0.6 and TUF will be less than 0.35

rectification efficiency will be less than 0.6 but TUF will be more than 0.35

⇒ The switching expression corresponding

C D + B C

C ⊙ D

C ⊕ D

CD

⇒ Consider an incremental vector element of length ΔL and angle between an electric field E and ΔL s cos &the

In the direction of E

In opposite direction of E

In the angle of 45° with E

In the angle of 60° with E