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Q1. | In a 5 x 7 dot matrix, format, to store 64 alphanumeric characters we require |

A. | 1120 bits [Wrong Answer] |

B. | 2240 bits [Correct Answer] |

C. | 33 bits [Wrong Answer] |

D. | 64 bits [Wrong Answer] |

View Answer
Explanation:-
Answer : BDiscuss 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 :**

⇒ Consider the following; for a loss-less transmission line we can write,

- Z
_{in}= -*jz*_{0}for a shorted line with*l*= λ/8 - Z
_{in}= ±*j*∞ for a shorted line with*l*= λ/4 - Z
_{in}=*jz*_{0}for an open line with*l*= λ/2 - Z
_{in}= 0 for a matched line of any length

1, 2

2, 3

1, 3

2, 4

⇒ The radar cross-section of a target depends an

frequency

polarization of incident wave

aspect of target

all of the above

⇒ How many lines are there in address bus of 8085 μp?

6

8

12

16

⇒ In a single phase semi-converter the number of thyristors is

16

8

4

2

⇒ In the human eye, an image persists for a time of about

1 second

0.1 second

0.05 second

0.02 second

⇒

**Assertion (A):** In a power divider S_{H} = 0, S_{21} = 0.707 = S_{3},

**Reason (R):** In a power divider the input port (*i*.*e*., port 1) is matched and incident power is equally divided in output ports 2 and 3

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 but R is wrong

A is wrong but R is correct

⇒ 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}

⇒ The question below consists of a pair of related words followed by four pairs of words. Select the pair that best expresses the relation in the original p

fallow : land

unaware : sleeper

wit : jester

renovated : house

⇒ A binary ladder network D/A converter requires

resistors of one value only

resistors of many different values

resistors of two different values

none of the above

⇒

**Assertion (A):** The polynomial *s*^{3} + 6*s*^{2} + 12*s* + 8 is Hurwitz.

**Reason (R):** In a Hurwitz polynomial all coefficients are non-negative.

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

Both A and R are true and R is not the correct explanation of A

A is true but R is false

A is false but R is true

⇒ Which one is correct option?

TEM mode exist in free space of infinite boundary

TEM mode exist in two conductor pattern system for finite-boundary

TEM mode exist in waveguide only

Both (a) and (b)

⇒ The resistance of resistance strain gauge is about

5 Ω

50 Ω

120 Ω

0.5 Ω

⇒ The poles of an RC function

are simple and lie or negative real axis

are simple and lie on ω axis

must be complex conjugate

may be anywhere on

*s*plane

⇒ A 400 W carrier is amplitude modulated with

*m*= 0.75. If single side band suppressed carrier is used the total power in modulated wave is

400 W

512 W

112 W

56 W

⇒ In an R-C circuit, the impedance is 40 Ω at a frequency of 100 Hz. At 200 Hz the impedance should be

40 Ω

80 Ω

20 Ω

more than 20 Ω but less than 40 Ω

⇒ The logic circuit of the given figure realizes the func

(A + B + C)(D)(E)

(A + B + C) (D)(E)

(A + B = C) (D)(E)

(A + B + C)(D)(E)

⇒ Point out the false statement

impulse noise voltage does not depend on bandwidth

thermal noise is independent of frequency at which it is measured

industrial noise is mostly of impulse type

space noise is observable at frequencies in the range of 8 MHz and higher

⇒ An ac network has a power factor of 0.8 leading if the applied wave is of fundamental frequency. If the applied wave contains third and fifth harmonics, the overall power factor will be

0.8 leading

less than 0.8 leading

more than 0.8 leading

0.8 leading or more

⇒ E7F6

_{16}= __________ .

600000

_{10}

59382

_{10}

9382

_{10}

382

_{10}

⇒

**Assertion (A):** The number ∈ such that the probability that an error is between -∈ and + ∈ is 1 is called probable error of single obserevation.

**Reason (R):** The standard deviation is the arms value of the deviation from the arithmetic mean.

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

⇒ The minority carrier life time and diffusion constant in a semiconductor material are respectively 100 microsecond and 100 cm

^{2}/sec. The diffusion length is

0.1 cm

0.01 cm

0.0141 cm

1 cm

⇒

Match the following:

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

A. | Poles and zeros of lie an real axis driving point LC network | 1. | lie an real axis |

B. | Canonic LC network has | 2. | a zero |

C. | The number of Canonic networks for the given driving point function | 3. | minimum number of elements |

D. | The first critical frequency nearest the origin for RL driving point impedance | 4. | four |

5. | minimum number of elements | ||

6. | alternate | ||

7. | either a pole or zero | ||

8. | three |

A-1, B-5, C-8, D-7

A-6, B-5, C-3, D-2

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

A-1, B-3, C-4, D-7

⇒ For an RC admittance function

the lowest critical frequency is a zero

the highest critical frequency is a pole

the lowest critical frequency is zero and the highest critical frequency is a pole

the lowest critical frequency is a pole

⇒ A Hartley oscillator uses

a tapped inductor

a tapped capacitor

both (a) and (b)

neither (a) nor (b)

⇒ Both OR and AND gates can have only two inputs.

TRUE

FALSE

⇒ A thyristor has its gate current zero. To start conduction the forward voltage must exceed

about 0.5 V

forward breakover voltage

on state voltage

peak working off state forward voltage

⇒ In a biased JFET (Figure) the shape of the channel is as shown bec

it is the property of material used

the drain end is more reverse biased than source end

drain end is more forward biased than source end

impurity profile changes with distance

⇒ The amplitude modulated wave is given by __________

*e*= 25(1 + 0.7 cos 5000

*t*- 0.3 cos 1000

*t*) x sin 5 x 10

^{6}

*t*The amplitude of carrier and sideband frequencies in magnitudes are

25, 0.7, 0.3

25, 0.7, - 0.3

24, 17.5, 7.5

25, 8.75, 3.75

⇒ A 3 bit synchronous counter uses FF with propagation delay time of 20 ns each. The maximum possible time required for change of state will be.

60 ns

40 ns

20 ns

None

⇒ A parallel plate capacitor with air as dielectric has a capacitance C. If the dielectric has a dielectric constant ∈

_{r}and the remaining dimensions are the same, the capacitance will be

C/∈

_{r}

∈

_{r}C

∈

^{2}

_{r}C

∈

^{3}

_{r}C