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Q1. | A white noise X(t) with two-sided power spectral density 1 x 10^{-10} W/Hz is input to a filter whose magnitude squared response is shown be |

A. | 5 x 10^{-7}W [Wrong Answer] |

B. | 1 x 10^{-6}W [Correct Answer] |

C. | 2 x 10^{-6}W [Wrong Answer] |

D. | 5 x 10^{-6}W [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 :**

⇒ A capacitor can be represented by a capacitance C in parallel with a resistance R. For a good capacitor, the resistance R should be

very high

high

very low

low

⇒ Zip floppy has a capacity of

50 MB

500 MB

25 MB

100 MB or 250 MB

⇒ The drift velocity of electrons is

very small as compared to speed of light

equal to speed of light

almost equal to speed of light

half the speed of light

⇒ Basically a potentiometer is a device for

comparing two votage

measuring a voltage

comparing two currents

measuring a current

⇒ The derating factor, for ambient temperature higher than specified, for a transistor is about

2.5 mW/°C

0.5 mW/°C

10 mW/°C

20 mW/°C

⇒ In crystalline solids, atoms are stacked in a regular manner.

TRUE

FALSE

⇒ In energy band diagram of

*p*type semiconductor the acceptor energy level is

in valence band

in conduction band

slightly above valence band

slightly below conduction band

⇒ In liquids charge carriers are electrons only.

TRUE

FALSE

⇒ Which of these has the highest dielectric strength?

Mica

Air

Cotton

Rubber

⇒ Given below a block diagram of oscillator circuit with various reactance elemen

*x*

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*x*

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*x*

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*x*

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*x*

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*x*

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⇒ If two mutually exclusive events A and B can happen in

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TRUE

FALSE

⇒ Modulation system used for video-modulation in television broadcast is

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1.2 V

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⇒ Which of the following statements is non-executable in FORTRAN 77?

DO

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END

DIMENSION

⇒ Which of the following statements is incorrect?

Ideal voltage source is one whose internal resistance is zero

Ideal voltage source is one whose internal conductance is zero

Ideal voltage source is one whose generated voltage is equal to the available terminal voltage

Ideal current source is one whose internal conductance is zero

⇒ A voltage V(

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⇒ According to Barkhausen criteria in order to sustain the oscillations

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loop gain of the circuit must be equal to unity

the phase shift around the circuit must be 180°

none of the above

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Match the following:

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

A. | Ring modulator | 1. | Clock recovery |

B. | VCO | 2. | Demodulation of FM |

C. | Foster Seeley discriminator | 3. | Frequency conversion |

D. | Mixer | 4. | Summing of two points |

5. | Generation of FM | ||

6. | Generation of DSB-SC |

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

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

A-6, B-1, C-3, D-2

A-5, B-6, C-1, D-3

⇒ In a bipolar junction transistor the base region is made very thin so that

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⇒ In CE approximation, the upper end of d.c. load line is called the __________ point and the lower end is the __________ point.

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⇒ In the given figure, of potentiometer V

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⇒ The circuit shown in figure, will act as an ideal current source with respect to terminals A and B, when frequenc

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4 rad/s

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⇒

**Assertion (A):** Positive feedback is not used in any circuit.

**Reason (R):** Positive feedback leads to instability.

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

R is correct but A is wrong

⇒ The characteristics of which device has peak point and valley point

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PUT

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30

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250

12