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Q1. | Symmetrical square wave of time period 100 μs can be obtained from square wave of time period 10 μs by using |

A. | divide by 5 circuit [Wrong Answer] |

B. | divide by 2 circuit [Wrong Answer] |

C. | divide by 5 circuit followed by divide by 2 circuit [Correct Answer] |

D. | BCD counter [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 :**

⇒ Waveform shown in figure is that

FM

PCM

AM-DSB

AM-SSB

⇒ In amplitude modulation the rms value of radio frequency voltage after 40% modulation is 60 mV. If modulation is 80% the rms value after modulation will be about

50 mV

60 mV

66 mV

80 mV

⇒ Which of the following is not used as a microwave mixer or detector?

PIN diode

Crystal diode

Schottky barrier diode

Backward diode

⇒ In floating point representation, the accuracy is

10 bit

9 bit

8 bit

6 bit

⇒

Match the following:

List I (Octal) | List II (Hexadecimal) | ||
---|---|---|---|

A. | 66 | 1. | 3 F |

B. | 77 | 2. | 36 |

C. | 55 | 3. | 27 |

D. | 47 | 4. | 3D |

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

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

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

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

⇒ In the given circuit, V

_{1}= 40 V when R is 10 Ω. When R is zero, the value of V

_{2}wil

40 V

30 V

20 V

10 V

⇒ A two branch parallel tuned circuit has a coil of resistance 100 Ω and inductance 0.005 H in one branch and 10

*n*F capacitor in the second branch. At resonance frequency, the dynamic resistance is

1 Ω

10 Ω

100 Ω

more than 100 Ω

⇒ The output of a Piezoelectric crystal has

low amplitude and low impedance

high amplitude and low impedance

low amplitude and high impedance

high amplitude and high impedance

⇒ The total number of input words for 4 input OR gate is

20

16

12

8

⇒ In 8085

the upper 8 address bits appear on address bus and lower 8 bits on address data bus

the lower 8 address bits appear on address bus and the upper 8 address bits appear on address data bus

either upper or lower 8 address bits may appear at address bus

either upper or lower 8 address bits may appear at address data bus

⇒ The figure of merit for a logic family is

gain band width product

(propagation delay time) (power dissipation)

(fan out) (power dissipation)

(noise margin) (power dissipation)

⇒ As compared to the number of network elements in Brune synthesis, the number of network elements Bott-and Duffin in realization is

more

less

equal

any of the above

⇒ MICR stands for

Magnetic Ink Chart Receipt

Magnetic Ink Character Recognition

Magnetic Ink Chart Recognition

Magnetic Ink Character Receipt

⇒ If the number of information bits is m, the number of parity bits p in the Hamming code is given by equation

2

^{p}= m + p + 1

2

^{p}≥ m + p + 1

2

^{P}= m + p

2

^{p}≥ m + p

⇒ The permeability of soft iron can be increased by

purifying it

reducing carbon percentage

alloying with cobalt

increasing percentage

⇒ A series circuit has R = 5 Ω and C = 10 μF. At

*t*= 0 it is switched on to a 10 V dc battery. The maximum current in the circuit is

0.0833333333333333

0.0416666666666667

10

^{6}A

10 μA

⇒ Distilled water at 25°C is characterized by σ = 1.7 x 10

^{-4}mho/m and ε = 78 ε

_{0}at a frequency of 3 GHz. Its loss tangent is (ε = 10

^{-9}/36p F/m)

1.3 x 10

^{-5}

1.3 x 10

^{-3}

1.7 x 10

^{-4}/78

1.7 x l0

^{-4}/78ε

_{0}

⇒ As the number SWG increases, area of cross-section decreases.

TRUE

FALSE

⇒ For the circuit shown in the figure, the time constant RC = 1 ms. The input voltage is V

_{1}(

*t*) = 2 sin 10

^{3}

*t*. The output voltage V

_{0}(

*t*) is equa

sin (10

^{3}

*t*- 45°)

sin (10

^{3}

*t*+ 45°)

sin (10

^{3}

*t*- 53°)

sin (10

^{3}

*t*+ 53°)

⇒ For the same length of arrays, half power beam-width of binomial array

is equal to that of uniform arrays

is less than that of uniform array

is more than that of uniform array

is negligible as compared to that of uniform array

⇒ Which of the following is λ/2 length?

Marconi

Hertz

Parabolic

Yagi-uda

⇒ A trinitron colour picture tube uses

three electron guns

one electron gun

one electron gun with three separate in line cathodes

none of the above

⇒ Which of the following theorems enables a number of voltage (or current) sources to be combined directly into a single voltage (or current) source?

Superposition theorem

Compensation theorem

Millman's theorem

Thevenin's theorem

⇒ Thermistor has a positive temperature coefficient.

TRUE

FALSE

⇒ A tie set schedule shows

incidence of branches to nodes

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incidence of nodes to loops

none of the above

⇒ As EM waves travel in free space they get

reflected

refracted

attenuated

absorbed

⇒ The elements which become superconducting at extremely low temperatures are

good conductors at room temperature

ferromagnetic at room temperature

relatively poor conductors at room temperature

insulators at room temperature

⇒ Consider a Binary Symmetric Channel (BSC) with probability of error being

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*p*

^{3}+ 3

*p*

^{2}(1 -

*p*)

*p*

^{3}

(1 -

*p*)

^{3}

*p*

^{3}+

*p*

^{2}(1 -

*p*)

⇒ 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

⇒ Figure shows the equivalent circuit of resistor. The resistor is non-inductive w

R = L/C

LR = L/C

L = CR

^{2}

C = LR

^{2}