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Q1. | The clock shown in figure has a frequency of 6 MHz. The frequency of the Q output wil |

A. | 12 MHz [Wrong Answer] |

B. | 24 MHz [Wrong Answer] |

C. | 3 MHz [Correct Answer] |

D. | 1.5 MHz [Wrong Answer] |

View Answer
Explanation:-
Answer : CDiscuss it below :Po Said on 2022-06-13 09:40:03con di me m !! OOPS Login [Click here] is required to post your answer/resultHelp other students, write article, leave your comments |

**Also Read Similar Questions Below :**

⇒

**Assertion (A):** Synchronous counter has higher speed of operation than ripple counter

**Reason (R):** Synchronous counter uses high speed flip flops.

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 true, R is false

A is false, R is true

⇒

Match the following:

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

A. | Resistance | 1. | Current noise |

B. | Diode | 2. | Partition noise |

C. | Triode | 3. | Shot noise |

D. | p-n junction | 4. | Atmospheric noise |

5. | Johnson noise |

A-5, B-3, C-2, D-1

A-1, B-2, C-3, D-5

A-3, B-5, C-1, D-2

A-3, B-5, C-2, D-1

⇒ A doped semi-conductor is called

impure semi-conductor

dipole semi-conductor

bipolar semi-conductor

extrinsic semi-conductor

⇒ A line is excited by a 100 V dc source. If reflection coefficients at both ends are 1 each then

there will be no oscillations on line

there will be only 1 or 2 oscillations on line

there will be a finite number of oscillations on line

the oscillations will continue indefinitely

⇒ MF is generally used for

telegraphy

radio and television links

satellite communication

broadcasting, navigation

⇒ In a 3 phase full wave regulator feeding a star connected resistance load the input voltage is 400 V line to line. The firing angle is 160°. The line to line output voltage would be

400 V

about 100 V

about 20 V

zero

⇒ A series RLC circuit has a resonant frequency of 1000 Hz. The maximum voltage across C is likely to occur at a frequency of about

1000 Hz

2000 Hz

1025 Hz

975 Hz

⇒ Consider the sequence

*x(n)*whose fourier transform X(

*e*) is depicted for - p ≤ ω ≤ p as shown in fig

^{jω}1 - True, 2 - True, 3 - True, 4 - True

1 - False, 2 - True, 3 - False, 4 - True

1 - True, 2 - False, 3 - True, 4 - False

1 - False, 2 - False, 3 - False, 4 - True

⇒ During fast forward operation of a tape recorder

all heads are withdrawn

all amplifiers are shut off

tape is not pressed against capstan

all of the above

⇒ The purpose of series quadrature windings in amplidyne is to

neutralize the effect of armature reaction

reduce commutation difficulties

increase the gain

increase response time

⇒ Select the correct relation

∇(AB) = A ∇ B + B ∇ A

∇ . (AB) = ∇ A . B + A ∇ B

∇ x (AB) = ∇ A x B + A ∇ B

All of the above

⇒ Gauge factor of a strain gauge is

unit change in resistance per unit change in length

change in resistance per unit change in length

unit change in length per unit change in resistance

none of the above

⇒ A function Z(

*s*) has zero at infinity if

the degree of numerator and denominator 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

⇒ The scaling factor of an MOS device using constant voltage scaling model, the gate area of the device will be scaled as

1/a

1/a

^{2}

1/a

^{3}

1/a

^{4}

⇒ The instruction

`MVI A, 20`

in 8085 meanscontents of memory location 20 are brought into the accumulator

the value 20 is brought into accumulator

either (a) or (b)

neither (a) nor (b)

⇒ All magnetic materials exhibit the phenomenon of saturation.

TRUE

FALSE

⇒ A typical value of

*g*

_{m}for a FET is about 25 μs.

TRUE

FALSE

⇒ A transmitter power of 5 W is increased by 20 dB. The effective radiated power is

5 W

100 W

25 W

500 W

⇒

Match the following:

List I (Signal) | List II (Value) | ||
---|---|---|---|

A. | AM | 1. | 0 0.5 |

B. | DSB - SC | 2. | 1 |

C. | SSB | 3. | 2 |

D. | FM (β = 2) | 4. | 16 |

E. | FM (β = 5) | 5. | 8 |

A-1, B-3, C-2, D-5, E-4

A-3, B-3, C-1, D-5, E-4

A-2, B-1, C-4, D-5, E-5

A-4, B-2, C-5, D-3, E-1

⇒ Television signals are propagated as ground waves.

TRUE

FALSE

⇒ What is the propagation constant for air filled wave guide with dimensions

*a*= 1.59" and

*b*= 0.795" at 4.95 GHz?

0.6698

0.7698

0.503

0.6598

⇒ A quarter wave line short circuited at load end behaves as

an inductance

an inductance and capacitance in series

a capacitance

an inductance and capacitance in parallel

⇒ The number of inputs and outputs in a full adder are

2 and 1

2 and 2

3 and 3

3 and 2

⇒ A single phase semiconverter is feeding a highly inductive load. The circuit has a freewheeling diode across the load and firing angle is a. During one cycle of input voltage, the total duration of conduction of freewheeling diode is

a

2 a

4 a

0.5 a

⇒ 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}

⇒ How many interrupts are there of 8085 μP?

4

5

6

8

⇒ In a good voltage amplifier, its input impedance

must be high compared to the resistance of the source

must be low compared to the resistance of the source

must be equal to the resistance of the source

must be half the resistance of the source

⇒ Which one of the following is the correct sequence of the numbers represented in the series given below?

2, 3, 4, 5, 6......

2, 4, 6, 8, 10 .....

2, 4, 6, 10, 12......

2, 4, 6, 10, 16 .....

⇒ When the emitter current of a transistor is changed by 1 mA, its collector current changes by 0.990 mA. The common base short circuit current gain a for the transistor is

0.99

1.01

1.001

0.99

⇒ A single phase electric heater uses phase controlled thyristors. The firing angle is 90°. The degree of heating is

25% of maximum

50% of maximum

75% of maximum

none of the above