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Q1. | In the graphical analysis of an amplifier circuit, the slope of dc load line depends on |

A. | load resistance only [Correct Answer] |

B. | collector supply voltage only [Wrong Answer] |

C. | both load resistance and collector supply voltage [Wrong Answer] |

D. | none of the above [Wrong Answer] |

View Answer
Explanation:-
Answer : ADiscuss 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

*n*-type silicon sample contains a donor concentration of N

_{d}= 2 x 10

^{16}cm

^{-3}. The minority carrier hole lifetime is t

_{p0}= 5 μs. The thermal equilibrium generation rate of hole is:

1.125 x 10

^{9}cm

^{-3}s

^{-1}

0.625 x 10

^{9}cm

^{-3}s

^{-1}

4.5 x 10

^{9}cm

^{-3}s

^{-1}

2.25 x 10

^{9}cm

^{-3}s

^{-1}

⇒ Out of the three transforms viz. Z-transform, Laplace transform and Fourier transform

all three are used in continuous time domain

all three are used in both continuous time domain and discrete time domain

Z transform is used in continuous time domain while Laplace and Fourier transforms are used in discrete time domain

Z transform is used is discrete time domain while Laplace and Fourier transforms are used in continuous time domain

⇒ In 8085 microprocessor, in order to enable INTR interrupt, which of the following instruction are needed?

EI only

SIM only

El and SIM both

None

⇒ A 300 Hz sound wave of intensity 20 dB is transmitted by a 1500 kHz radio wave by frequency modulation. It is seen that instantaneous frequency varies between 1500.2 kHz and 1499.8 kHz, 300 times a second. If the intensity of sound wave is 100 dB.

The instantaneous frequency variations will be between 1500.2 and 1499.8 kHz, 1500 times a second

The instantaneous frequency variations will be between 1501 and 1499 kHz, 1500 times a second

The instantaneous frequency variations will be between 1501 and 1499 kHz, 300 times a second

The instantaneous frequency variations will be between 1501 and 1499 kHz, 60 times a second

⇒ The reverse saturation current depends on the reverse bias.

TRUE

FALSE

⇒ A multimeter can be used as ohmmeter.

TRUE

FALSE

⇒ The radiation resistance of a λ/16 wire dipole in free space will be nearly

1 Ω

3 Ω

13 Ω

30 Ω

⇒ Which one is digital modulation technique?

AM

PAM

PCM

None

⇒ If there are M equally likely and independent messages and M = 2

^{N}where N is an integer, the information in each message is equal to

N bits

0.5 N bits

2 N bits

4 N bits

⇒ Which one is time invariant system?

*y*[

*n*] =

*x*[2

*n*]

*y*[

*n*] =

*x*[

*n*]

*x*[

*n*- 1]

*y*[

*n*] =

*x*[

*n*/2]

all

⇒ In a four variable Karnaugh map, eight adjacent cells give a

two variable term

single variable term

three variable term

four variable term

⇒ An AC source or RMS voltage 20V with internal impedance Z

_{s}= (1 + 2

*j*) Ω feeds a load of impedance Z

_{L}= (7 + 4

*j*) Ω in the figure below. The reactive power consumed by the loa

8 VAR

16 VAR

28 VAR

32 VAR

⇒ Full duplex operation-permits transmission in both directions at the same time.

TRUE

FALSE

⇒ In figure, V reads 45V. Then

10.1 A

13.3 A

16.1 A

19.4 A

⇒ In what condition does BJT act like an open switch

cut off

saturation

active

both (b) and (c)

⇒ Surface impedance at high frequencies is a consideration for

ferrites

semiconductors

good conductors

dielectrics

⇒

Match the following:

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

A. | TTL | 1. | Low propagation delay |

B. | ECL | 2. | Low power consumption |

C. | MOS | 3. | High packing density |

D. | CMOS | 4. | Saturated bipolar logic |

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

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

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

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

⇒ When Schrodinger equation is applied to the motion of electron in the field of protons, the physically acceptable solutions for the wave function exist for quantum number which are

2

3

4

5

⇒ If X(

*z*) = (1 -

*a*)

*z*

^{-1}/[(1 -

*z*

^{-1})(1 -

*az*)] and 1 < |

^{-1}*z*|, the final value of

*x*

*is*

_{k}0

1

∞

2

⇒ A balanced modulator circuit uses

two identical diodes with same V-I characteristics

two triodes with different V-I characteristics

two diodes with different V-I characteristics

a diode and a triode

⇒ An ideal power supply has

zero internal resistance

very high internal resistance

high output resistance

both (b) and (c)

⇒ Consider the following rules in Fortran

- A signed or unsigned real variable name or a real constant is a real expression.
- Two real expressions connected by an arithmetic operator is a real expression.
- A real variable or constant exponential by an integer constant or integer variable is not valid

All

1 and 2 only

1 and 3 only

2 and 3 only

⇒ If a complex voltage wave is applied to a pure inductance, the resulting current wave is much smoother than the voltage wave.

TRUE

FALSE

⇒ One of the advantages of base modulation over collector modulation of a transistor class C amplifier is

improved efficiency

better linearity

high power output per transistor

the lower modulating power requirement

⇒ An arrangement of several individual antennas to spaced and phased that their individual contributions combine in one preferred direction and cancel in all other directions, to get greater directive gain or directivity, is known as

directional radiation of antennas

antenna gain stability

array of antennas

none of the above

⇒ A compensator has its pole and zero as shown in the given fi

lag compensator

lead compensator

lead-lag compensator

series compensator

⇒

Match the following:

List I (Transducer) | List II (Operation) | ||
---|---|---|---|

A. | Bourden tube | 1. | Fluid flow to resistance change |

B. | Hot wire ammeter | 2. | Velocity to pressure |

C. | Hydrometer | 3. | Pressure to displacement |

D. | Pitot tube | 4. | Specific gravity to displacement |

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

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

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

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

⇒

**Assertion (A):** Damping in a vibration galvanometer is small.

**Reason (R):** Vibration galvanometer is a PMMC instrument.

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

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

A is true R is false

A is false R is true

⇒ Consider the following statements as regards IF in radio receivers

- If IF is too high, poor selectivity and poor adjacent channel rejection could result
- If IF is high, tracking difficulties increase
- A very low IF makes selectivity too sharp
- As IF is decreased, image frequency rejection becomes better

1, 2, 3, 4

1, 2, 3

2, 3, 4

1, 3, 4

⇒ When a lead acid cell is in fully charged condition the specific gravity of electrolyte is about 1.22.

TRUE

FALSE