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Q1. | The most commonly used transistor amplifier circuit is |

A. | CB [Wrong Answer] |

B. | CC [Wrong Answer] |

C. | CE [Correct Answer] |

D. | CE or CC [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 :**

⇒ How can the bandwidth of a control system be increased?

By the use of phase lead network

By the use of phase lag network

By the use of both phase-lag and phase-lead network

By the use of cascaded amplifiers in the system

⇒ Among the logic families, the family which can be used at very high frequency greater than 100 MHz in a 4 bit synchronous counter is

TTL

CMOS

ECL

TTLLS

⇒ For the system of the given figure, the undamped natural frequency of closed loop pole

2 rad/sec

1 rad/sec

0.5 rad/sec

0.25 rad/sec

⇒ The inductance of connecting leads can be a source of

low frequency parasitics

high frequency parasitics

carrier frequency parasitics

none of the above

⇒ In microwave system, waveguide twists

change the plane of polarization of a propagating wave

change the direction of a propagating wave

change the mode of a propagating wave

both (b) and (c)

⇒ A loss less transmission line is terminated in a load which reflects a part of the incident power. The measured VSWR is 2. The percentage of the power that is reflected back is

57.73

33.33

0.11

11.11

⇒ A notch filter is sometimes used in communication receivers to

reduce receiver gain at some specific frequency

increase receiver gain at some specific frequency

made selectivity more precise

spread the bandwidth

⇒ The resistivity of ferrites is

very much lower than that of the ferromagnetic metals

slightly lower than that of the ferromagnetic materials

slightly higher than that of the ferromagnetic metals

very much higher than that of the ferromagnetic metals

⇒ When a line of any odd multiple of a quarter wavelength is short-circuited it represents

unit impedance

infinite impedance

zero impedance

none of the above

⇒ What is output 'Z' of an EX-OR gate, whose all inputs are set at A?

Z = A

Z = 1

Z = 0

Z = A

⇒ If V

_{a1}, V

_{a2}, V

_{a0}are the symmetrical components of V

_{a}, then

V

_{a}= V

_{a1}+ V

_{a2}+ V

_{a0}

V

_{a}=

*a*

^{2}V

_{a1}+

*a*V

_{a2}+ V

_{a0}

V

_{a}=

*a*V

_{a1}+

*a*

^{2}V

_{a2}+ V

_{a0}

V

_{a}=

*a*V

_{a0}+

*a*

^{2}V

_{a1}+ V

_{a2}

⇒ A minimum function has

poles and zeros on imaginary axis of

*s*plane

no poles or zeros on imaginary axis of

*s*plane

only poles but no zeros on imaginary axis of

*s*plane

only zeros but no poles on imaginary axis of

*s*plane

⇒ Two ammeters A and B are connected in parallel in a circuit carrying 100 A. Their resistances are 0.8 mΩ. Their readings will be.

55.56 and 44.44 A respectively

44.44 A and 55.56 A respectively

60 A and 40 A respectively

40 A and 60 A respectively

⇒ In figure, I

_{D}= 4 mA. Then V

_{S20 V16 V6 V0.6 V}

⇒ In the circuit of figure the d

will conduct as the whole cycle

will conduct in the positive half cycle

will not conduct

will conduct from 30° to 150° in the positive half cycle

⇒ Addition of 0.3 to 3.5% silicon to iron

increases the electrical resistivity of iron

decreases the electrical resistivity of iron

does not change electrical resistivity of iron

silicon can't be added with iron

⇒ In a radar, the return echo arrives after the allocated pulse interval. Then

the receiver may be over loaded

the target will appear closer than its actual position

the return echo may interfere with transmitter operation

none of the above

⇒

**Assertion (A):** Transient periods are of short duration but can result in dangerously high voltages and currents.

**Reason (R):** Circuit equations in transient analysis are integral differential equations.

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

⇒ In electromagnetic wave polarization is caused by

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reflection

longitudinal nature of electromagnetic waves

transverse nature of electromagnetic waves

⇒ The converter whose conversion time is independent of number of bits is

dual stope

counter type

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⇒ If KMT = 100, LITRES = 5.0, PCOST = 28.0 and OPCOST = 70.0 what will be the result of the following FORTRAN 77 program?

2.1

21

21

⇒

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

⇒ If CS = A

_{15}A

_{14}A

_{13}is used as chip select logic of a 4 K RAM in 8085 system, its memory range is

3000 H - 3 FFF H

7000 H - 7 FFFH

5000 H - 5 FFF H and 6000 H - 6 FFF H

6000 H - 6 FFF H and 7000 H - 7 FFF H

⇒ A communication channel with additive white Gaussian noise, has a bandwidth of 4 kHz and an SNR of 15. Its channel capacity is

1.6 kbps

16 kbps

32 kbps

256 kbps

⇒ In a turnstile antenna the crossed dipoles are excited with voltages

in phase with each other

90° out of phase with each other

120° out of phase with each other

180° out of phase with each other

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

*p*. To transmit a bit, say 1, we transmit a sequence of three 1 s. The receiver will interpret the received sequence to represent 1 if at least two bits are 1. The probability that the transmitted bit will be received in error is

*p*

^{3}+ 3

*p*

^{2}(1 -

*p*)

*p*

^{3}

(1 -

*p*)

^{3}

*p*

^{3}+

*p*

^{2}(1 -

*p*)

⇒ A unit step function is used to represent the closing a switch in a constant voltage system.

TRUE

FALSE

⇒ The minimum gate source voltage that creates the

*n*-type inversion layer is called

cut off voltage

on voltage

threshold voltage

zener voltage

⇒ In terms of ABCD parameters, the image parameter Z

_{11}is equal to

AC/BD

BD/AC

AB/CD

AD/BC

⇒ Schrodinger wave equation is a

linear equation

differential equation

partial differential equation

none of the above