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Q1. | A NOR gate is a combination of |

A. | OR gate and AND gate [Wrong Answer] |

B. | AND gate and NOT gate [Wrong Answer] |

C. | OR gate and NOT gate [Correct Answer] |

D. | two NOT gates [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 :**

⇒ Floating gate is fabricated for making MOS

ROM

PROM

EPROM

EAROM

⇒ The two conductors of a transmission line carry equal current I in opposite direction. The force on each conductor is

proportional to I

proportional to I

^{2}

proportional to distance between the lines

proportional to I

^{3}

⇒ A moving iron instrument can be used for dc as well as ac.

TRUE

FALSE

⇒ For the minterm designation Y = ∑ m (1, 3, 5, 7) the complete expression is

Y = A BC + A B C

Y = A B C + A B C + ABC + A BC

Y = A B C + A B C + ABC + A BC

Y = A B C + ABC + A BC + A BC

⇒ 9's complement of 56

_{10}is

43

_{10}

84

_{10}

65

_{10}

53

_{10}

⇒ In a single stage differential amplifier, the output offset voltage is basically dependent on the mismatch of

V

_{BE}, I

_{B}and β

V

_{BE}and I

_{B}

I

_{B}and β

V

_{BE}and β

⇒ In a BJT circuit a

*pnp*transistor is replaced by

*npn*transistor. To analyse the new circuit

all calculations done earlier have to be repeated

replace all calculated voltages by reverse values

replace all calculated currents by reverse values

replace all calculated voltages and currents by reverse values

⇒ For making a capacitor, the dielectric should have

high ∈

_{r}

low ∈

_{r}

∈

_{r}= 1

∈

_{r}neither too high nor too low

⇒ In a modified series inverter

the maximum output frequency is less than frequency of damped oscillations

the output frequency can be even higher than the frequency of damped oscillations

the output frequency cannot exceed the frequency of damped oscillations

any of the above

⇒ It is required to trace the output characteristics of a CE bipolar transistor on a CRO screen. The proper method is

apply the voltage drop across collector resistance to Y input, disconnect sweep generator and apply V

_{CE}to X input

apply voltage drop across collector resistance to Y input

apply V

_{CE}to X input

apply V

_{CE}to Y input, disconnect the sweep generator and apply voltage drop across collector resistance to X input

⇒ In two level logic, logic race does not occur.

TRUE

FALSE

⇒ In a triode the potential of grid (with respect to cathode) is usually

zero

negative

positive

zero or positive

⇒ Which of the following is not an integer constant?

0

-8

1074

-8.1

⇒ The property is not valid for basic singularity function is

it is even signal

convolution of any arbitary function

*x*(

*t*) and an impulse is the original function itself

the sum of two impulses at same location is the impulse with the strength equal to the summation of individual strengths.

none of these.

⇒ If

*e*is the charge of an electron, R is the radius of its orbit and ω is the angular velocity of electron, the magnetic dipole moment μ

_{m}of the orbit is |μ

_{m}| =

*e*ωR

^{2}.

TRUE

FALSE

⇒ At room temperature the current in an intrinsic semiconductor is due to

holes

electrons

ions

holes and electrons

⇒ An LED is

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a display device

a voltage regulated device

all of the above

⇒ The Boolean expression A ⊕ B is equivalent to

AB + AB

AB + AB

B

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⇒ In a synchronous counter all flip flops are clocked together.

TRUE

FALSE

⇒ Hexadecimal number E is equal to binary number

1110

1101

1001

1111

⇒ In the schematic representation of bipolar junction transistor, the direction of arrow shows the direction of flow of

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electrons

holes in

*pnp*and electrons in

*npn*

electrons in

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*npn*

⇒ 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

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⇒ If the Nyquist plot does not encircle the (-1 +

*j*0) point the system is always stable.

TRUE

FALSE

⇒ In a complex wave, the negative half of the wave is a reproduction of the positive half wave. Then

the wave contains only fundamental and third harmonic

the wave does not contain even harmonics

the wave does not contain odd harmonics

the wave does not contain triple harmonics

⇒ If each branch of a Delta circuit has impedance 3 Z then each branch of the equivalent Y circuit has impedance.

Z/3

3 Z

3/3 Z

Z/3

⇒ A microprocessor can understand instruction written in

machine language only

mnemonics operation codes only

high language only

both machine language and mnemonics operation codes

⇒

**Assertion (A):** In C a character constant is either a single alphabet or digit or special symbol enclosed within single inverted commas.

**Reason (R):** In C the maximum length of a character constant can be 2 characters.

Both A and R are correct and R is correct explanation of A

Both A and R are correct but R is not correct explanation of A

A is correct R is wrong

A is wrong R is correct

⇒ Which of the following terms are equivalent?

- A ⊕ B ⊕ C
- A ⊕ B ⊙ C
- A ⊙ B ⊕ C
- A ⊙ B ⊙ C

1 and 4; 2 and 3

1 and 3

2 and 3

1, 2 and 4

⇒ For a type 0 system and unit ramp input, the steady state error is

0

∞

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1/K

_{V}⇒ The present total cost per watt of power generation in geosynchronous orbit is nearly Rs.

20

50

100

5