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Q1. | Which of the following noise sources is different from others? |

A. | Cosmic [Wrong Answer] |

B. | Solar [Wrong Answer] |

C. | Atmospheric [Correct Answer] |

D. | Galactic [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 :**

⇒ Tape recorders use

cone type loudspeakers

horn type loudspeakers

either cone type or horn type loudspeakers

none of the above

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

16

8

4

2

⇒ A 4 bit synchronous counter uses flip flops with a delay time of 15 ns each. The time required for change of state is

15 ns

30 ns

45 ns

60 ns

⇒ For the circuit shown in the figure, the current

indeterminate due to indeterminate data

zero

4 Amp

8 Amp

⇒ In the circuit shown in the given figure, the current flowing through resistance of 100 Ω woul

8 mA

10 mA

20 mA

100 mA

⇒ Y = A + A B is the same as

Y = AB

Y = A + B

Y = A + B

Y = A + B

⇒ For an N-point FFT algorithm with N = 2

^{m}which one of the following statements is TRUE?

It is not possible to construct a signal flow graph with both input and output in normal order

The number of butterflies in the

*m*

^{th}stage is N/m

In-place computation requires storage of only 2N node data

Computation of a butterfly requires only one complex multiplication

⇒ A memory chip has 65536 cells in it. Then

time required to access cell is same as that to access cell 65536

time required to access cell is less than that required to access cell 65536

time required to access cell is more than that required to access cell 65536

either (a) or (b)

⇒ Words having 8 bits are to be stored into computer memory. The number of lines required for writing into memory are

1

2

4

8

⇒ If W

_{F}is the Fermi level, then in a metal at T = 0

all energy levels above W

_{F}filled, all those below W

_{F}are empty

all energy levels below W

_{F}are filled, all those above W

_{F}are empty

some energy levels, both below and above W

_{F}, are filled

all energy levels below and above W

_{F}are filled

⇒ The dc output voltage from a power supply

increases with higher values of filter capacitance and decreases with more load current

decreases with higher values of filter capacitance and increases with more load current

decreases with higher values of filter capacitance as well as with more load current

increases with higher values of filter capacitance as well as with more load current

⇒ Power is drawn from a source at power factor 0.7. P

_{av}= 300 watt. The reactive power is

0

105

100 VA

107 VA

⇒ A two terminal black box contains one of the elements R, L, C. The black box is connected to 220 V as supply. The current is I, when a capacitance of 0.1 F is connected in series between the source and box, the current is 2I. The elements is

resistance

inductance

capacitance of 0.5 F

not identifiable form the given data

⇒ Which of the following statements is incorrect regarding Balun transformer?

It changes impedance like current transformer

It changes balanced to unbalanced line

It is used to couple a co-axial line to a parallel line wire

Any of the above

⇒ The colour code on a carbon resistor is yellow-violet-orange. The value of resistance is

17000 Ω

27000 Ω

37000 Ω

47000 Ω

⇒ The maximum number of alphabets/digits or special symbots for character constants in C is

1

2

4

8

⇒ Reciprocity theorem is applicable to

circuits with one source

circuits with only one independent source

circuits with any number of sources

circuits with any number of independent sources

⇒ A line has standing waves with a voltage maximum of 35 mV and minimum of 17.5 mV VSWR is

2

4

0.5

0.25

⇒ If the peak transmitted power in a radar is increased by a factor 81, the maximum range is increased by a factor of

3

9

27

81

⇒ If reflection coefficient is 1/5, then corresponding VSWR is given by

1

2

3

42796

⇒ Consider the following stateme

1, 4 are correct

1 and 2 correct

1, 2, 3 are correct

2, 3, 4 are correct

⇒ (FE35)

_{16}XOR (CB15)

_{16}is equal to

(3320)

_{16}

(FE35)

_{16}

(FF50)

_{16}

(3520)

_{16}

⇒ The use of coaxial microwave line should be restricted to frequencies

below cut off frequency of TE

_{11}mode

above cut off frequency of TE

_{11}mode

at frequencies much lower than cut off frequency of TE

_{11}mode

at frequencies much higher than cut off frequency of TE

_{11}mode

⇒ In an RC phase shift oscillator, the total phase shift of the three RC lead networks is

360°

180°

90°

0°

⇒ In

*n*channel JFET

I

_{D}and V

_{DS}are positive but V

_{GS}is negative

I

_{D}and V

_{GS}are positive but V

_{DS}is negative

V

_{DS}and V

_{GS}are positive but I

_{D}is negative

I

_{D}, V

_{DS}and V

_{GS}are all positive

⇒ Which one of the following is used as the interface chip for data transmission between 8086 and a 16-bit ADC?

8259

8255

8253

8251

⇒ The magnitude of transport lag factor is always zero.

TRUE

FALSE

⇒ The system of the given fi

has two poles and one zero in left half plane

has two poles and one zero in right half plane

has two poles in left half plane and zero in right half plane

none of the above

⇒ The value of current read by ideal ammeter A in figure is __________ amp

0

3

2.5

5

⇒ In the given figure

A

B

A + B + C

ABC