Users Also Read

MCQ's Search Engine

Electrical Engineering

Mechanical Engineering

Civil Engineering

Automobile Engineering

Chemical Engineering

Computer Engineering

Electronics Engineering

Medical Science Engg

Q1. | The unit of displacement density is |

A. | volt/metre [Wrong Answer] |

B. | ampere/metre^{2} [Wrong Answer] |

C. | coulombs/metre [Wrong Answer] |

D. | coulombs/metre^{2} [Correct Answer] |

View Answer
Explanation:-
Answer : DDiscuss 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 coil is connected across a 200 V, 50 Hz supply and takes a current of 10 A. The loss in the coil is 1000 W. The impedance and resistance of the coil are

10 Ω, 8 Ω

15 Ω, 8 Ω

20 Ω, 10 Ω

30 Ω, 15 Ω

⇒ In the spectrum of a frequency modulated wave

carrier frequency cannot disappear

carrier frequency vanishes when modulation index is large

the number of significant sidebands depends upon modulation index

none of the above

⇒ The number of memory locations in which 14 address bits can access is

1024

2048

4096

16384

⇒ In a microwave resistor the wall thickness is made as small as possible to

have high value of R

have low value of R

minimize capacitive effect

reduce inductance

⇒ In a Vidicon camera tube,

both sides of the target plate have the coating of tin oxide

both sides of the target plate have the coating of antimony tri-sulphide

the side of target plate facing the light has a coating of tin oxide and the side facing electron gun has a coating of antimony trisulphide

the side of target plate facing the light has a coating of antimony trisulphide while the side facing the electron gun has a coating of tin oxide

⇒ The input impedance of op-amp circuit of figur

120 k ohm

110 k ohm

infinity

10 k ohm

⇒ Minimum no. of 2 I/P NAND gate required to implement the Boolean function Z = ABC, assuming that A, B and C are available is

2

3

5

6

⇒ For satellite communication, the frequency should be

equal to the critical frequency

more than the critical frequency

less than the critical frequency

none of these

⇒ In a circular waveguide with radius

*r*, the dominant mode is

TM

_{01}

TE

_{01}

TM

_{11}

TE

_{11}

⇒ The coil of a DArsonval galvanometer has N turns. If flux density is B, current is I and area of coil is A, the deflecting torque is

NBI/A

NBIA

NIA/B

N

^{2}IAB

⇒ For a rectangular waveguide (

*a*x

*b*,

*a*>

*b*) to support only the TE

_{10}mode at wavelength which one of the following pairs of in equalities is to be satisfied?

*b*< λ < 2

*b*; λ > 2

*a*

*b*< λ < 2

*b*; λ < 2

*a*

*a*< λ < 2

*b*; λ < 2

*a*

*a*< λ < 2

*b*; λ > 2

*a*

⇒ In a two stage cascade amplifier, each stage has a gain of 10 dB and noise figure of 10 dB. The overall noise factor is

10

1.09

1

10.9

⇒ The following Variable Entered Map (VEM) represents which of the following funct

*f*(A, B, C, D) = ∑(1, 2, 3, 4, 7, 8, 9, 14, 15) + Φ(3, 5, 12, 13)

*f*(A, B, C, D) = ∑(1, 2, 4, 8, 10, 8, 13, 15) + Φ(3, 6, 12, 14)

*f*(A, B, C, D) = ∑(1, 2, 4, 7, 8, 10, 13, 15) + Φ(6, 12, 13)

*f*(A, B, C, D) = ∑(1, 2, 4, 7, 8, 9, 12, 13) + Φ(3, 5, 14, 15)

⇒ Which one is a linear system?

*y*[

*n*] =

*x*[

*n*] x

*x*[

*n*- 1]

*y*[

*n*] =

*x*[

*n*] +

*x*[

*n*- 10]

*y*[

*n*] =

*x*

^{2}[

*n*]

(a) and (c)

⇒ Microwave signals follow the curvature of the earth and the phenomenon is known as

tropospheric scatter

duct propagation

Faraday effect

none of the above

⇒ Induction wattmeter is an absolute instrument.

TRUE

FALSE

⇒ In a 3 phase full wave regulator feeding a star connected resistance load, firing angle is 75°. Then the number of thyristors conducting at one time is

1

2

3

4

⇒ In the saturation region of CE output characteristics of

*n*-

*p*-

*n*transistor, V

_{CE}is about

0.5 V

15 V

- 0.5 V

- 15 V

⇒ In terms of signum function

*sgn*(

*t*), unit step function

*u*(

*t*) =

1 +

*sgn*(

*t*)

1 -

*sgn*(

*t*)

0.5 + 0.5

*sgn*(

*t*)

0.5 - 0.5

*sgn*(

*t*)

⇒ In a shunt-shunt negative feedback amplifier, as compared to the basic amplifier

both input and output impedances, decrease

input impedance decreases but output impedance increase

I/P impedance increases but O/P impedance decreases

both input and O/P impedance increases

⇒ The number of roots of

*s*

^{3}+ 2

*s*

^{2}+ 7

*s*+ 3 = 0 in the left half of the s-plane is :

zero

one

two

three

⇒ Calculate wave impedance for TE mode

(377)Ω

226 Ω

∞

629 Ω

⇒ A full wave diode rectifier using centre tapped transformer has diodes with forward resistance of 50 ohms each. The load resistance of 50 ohms each. The load resistance is also 50 ohms. The voltage regulation is

0.2

0.5

1

2

⇒ In 8085 microprocessor, how many I/O ports can be accessed by direct method?

8

256

32 K

64 K

⇒ Hall effect is observed in a specimen (metal or semi- conductor) when it is carrying current and is placed in a magnetic field. The resultant electric field inside the specimen is

normal to both current and magnetic field

in the same direction as current

in a direction anti parallel to magnetic field

none of the above

⇒ A 6 bit DAC uses binary weighted resistors. If MSB resistor is 20 k ohm, the value of LSB resistor is

20 k ohm

80 k ohm

320 k ohm

640 k ohm

⇒ A 3 phase series inverter has

12 thyristors

6 thyristors

3 thyristors

3 or 6 thyristors

⇒ The M.K.S. unit of magnetic field intensity is

ampere

ampere/metre

volt

volt/metre

⇒

Match the following:

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

A. | Fourier transform of a Gaussian function | 1. | Gaussian function |

B. | Convolution of a rectangular pulse with itself | 2. | Rectangular pulse |

C. | Current through inductor for step input voltage | 3. | Triangular pulse |

4. | Ramp function | ||

5. | Zero |

A-1, B-2, C-3

A-2, B-4, C-5

A-1, B-3, C-4

A-2, B-3, C-5

⇒ The input to ALU are the contents of accumulator and temporary register.

TRUE

FALSE