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Q1. | A microprocessor uses 3 MHz oscillator. The duration of one T state is |

A. | 1 μs [Wrong Answer] |

B. | 0.666 μs [Wrong Answer] |

C. | 0.333 μs [Correct Answer] |

D. | 3 μs [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 :**

⇒ In a BJT CE amplifier circuit the value of coupling capacitor should be such that

its reactance is small for the lowest frequency in the input and output

its reactance is high for the lowest frequency in the input and output

its reactance is zero for the lowest frequency in the input and output

its reactance is infinite for the lowest frequency in the input and output

⇒ What is the normal range of analog input voltage?

0 to 1 V

0 to 5 V

5 to 15 V

15V to 30V

⇒

Match the following:

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

A. | Output of signal generator | 1. | Modulated |

B. | Error signal from a synchro | 2. | Digital |

C. | Output of a JK flip flop | 3. | Analog |

D. | Signal received by radar | 4. | Stoichastic |

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

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

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

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

⇒ Zip floppy has a capacity of

50 MB

500 MB

25 MB

100 MB or 250 MB

⇒ In auxiliary commutated chopper, the peak value of thyristor current is

equal to peak value of load current

equal to peak value of capacitor current

sum of peak value of load current and capacitor current

none of the above

⇒ In FM, increased depth of modulation increases

modulation

modulation index

bandwidth

all of the above

⇒ In an ac circuit the fundamental component of current wave lags the corresponding voltage wave by 20°. The third harmonic component of current wave lags the corresponding voltage by an angle.

less than 20°

more than 20°

equal to 20°

equal to or more than 20°

⇒ Frequency response approach is a simple approach to control system design.

TRUE

FALSE

⇒ A 12 bit ADC is operating with 1 μs clock period. Total conversion time is 14 μs. ADC is

flash type

counting type

integrating type

successive approximation type

⇒ An air gap provided in the iron core of an inductor prevents

flux leakage

hysteresis loss

core saturation

heat generation

⇒ In the wheatstone bridge in figure, each resistance is increased by 0.05%. The value of v

_{0}will

50 mV

5 mV

0.1 mV

zero

⇒ When load is coupled to class A amplifier through transformer, efficiency decreases.

TRUE

FALSE

⇒ The number of channels in a stereophonic system is

8

4

2

1

⇒ Noise limiter is provided on AM receivers to

reduce interfering noise due to ignition system

reduce noise due to electrical storms

reduce interference due to electrical machinery

all of the above

⇒ In a positive-edge-triggered JK flip-flop, a low J and a low K produce __________ state. A high __________ on the rising edge of the clock.

inactive, reset

active, reset

active, toggle

inactive, toggle

⇒ Find L

_{eq}if each L is

4/3 H

1/3 H

2/3 H

3/2 D

⇒ The density of states (

*i.e.*number of states per eV per m

^{3}) in the conduction band for energy level

*E*is proportional to

E

E

E

^{1.5}

E

^{2}

⇒

Match the following:

List I (Types of N-bit ADC) | List II (Characteristics) | ||
---|---|---|---|

A. | Flash converter | 1. | Integrating Type |

B. | Successive | 2. | Fastest converter approximation |

C. | Counter ramp | 3. | Maximum conversion time = N bits |

D. | Dual slow | 4. | Used a DAC in its feedback path |

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

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

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

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

⇒ As compared to an ordinary semiconductor diode, a Schottky diode

has lower cut in voltage

has higher cut in voltage

lower reverse saturation current

both (b) and (c)

⇒ Wire-wound resistors are unsuitable for use at high frequencies because they

are likely to melt under excessive eddy current heat

exhibit unwanted inductive and capacitive effects

create more electrical noise

consume more power

⇒ The phase difference (

*j*ω -

*p*

_{1}) means

phasor drawn from

*p*

_{1}to

*j*ω

phasor drawn from origin to

*p*

_{1}

phasor directed from origin to

*j*ω point

phasor directed from

*j*ω to

*p*

_{1}

⇒ The slope of log magnitude curve changes by - 40 dB/decade at a certain frequency and the error between asymptote and actual curve is positive. This means that

a double pole is present

a pair of complex conjugate poles is present

either (a) or (b)

neither (a) nor (b)

⇒ A capacitor input filter relies on

average detection

peak detection

both (a) and (b)

neither (a) nor (b)

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

zero

negative

positive

zero or positive

⇒ A TR (transmitter receiver) tube has

low loss for low power signals and high

high loss for low power signals and low loss for high level signal

low loss for both low level and high level signals

high loss for both low level and high level signals

⇒ For a stable system having two or more gain crossover frequencies the phase margin is measured

at lowest gain crossover frequency

at highest gain crossover frequency

at the gain crossover frequencies

none of the above

⇒ In a circular waveguide the dominant mode is

TE

_{01}

TE

_{11}

TE

_{20}

TE

_{21}

⇒ When a series RL circuit having power factor angle 0 is switched on to an ac voltage V

_{m}sin (ω

*t*+ Φ), the transient term is zero if Φ = 0.

TRUE

FALSE

⇒ Consider the following program segment written for 8085 based sys

CE

20

indeterminate

none of these

⇒ A circular sphere mile is the area of cross-section of a wire

having a diameter equal to 1 miles

having a radius equal to 1 miles

having a circumference equal to 1 miles

none of the above