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Q1. | In digital circuits Schottky transistors are preferred over normal transistors because of their |

A. | lower propagation delay [Correct Answer] |

B. | lower power dissipation [Wrong Answer] |

C. | higher propagation delay [Wrong Answer] |

D. | higher power dissipation [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 :**

⇒ Which of the following is correct for a driving point functions?

The real parts of all poles must be negative

The real parts of all poles and zeros must be negative

The real parts of all poles and zeros must be negative or zero

The real parts of all zeros must be negative

⇒ Radar principle is used in

detection of aircraft

burglar alarms

garage door openers

all of the above

⇒ An image uses 512 x 512 picture elements. Each of the picture elements can take any of the 8 distinguishable intensity levels. The maximum entropy in the above image will be

2097152 bits

648 bits

786432 bits

144 bits

⇒ Under ordinary circumstances, impulse noise can be reduced in

FM only

AM only

both AM and FM

none of the above

⇒

Match the following:

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

A. | Mu Metal | 1. | very high magnetic permeability |

B. | Samrium/cobalt | 2. | very high magnetic remanence |

C. | Sapphire | 3. | very high thermal conductivity |

D. | Ferrites | 4. | very stable magnetic permeability |

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

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

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

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

⇒

**Assertion (A):** Magnetic susceptibility of copper is -0.5 x 10^{-5}.

**Reason (R):** Copper is diamagnetic material.

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 but R is false

A is false but R is true

⇒ The number of pins in microprocessor 8086 is

30

40

50

60

⇒ For an RC impedance function Z

Z(∞) = Z(0)

Z(∞) < Z(0)

Z(∞) ≤ Z(0)

Z(∞) > Z(0)

⇒ The carrier mobility in a semiconductor is 0.4 m

^{2}/Vs. Its diffusion constant at 300k will be (in m

^{2}/s).

0.43

0.16

0.04

0.01

⇒ A cycloconverter is a group of controlled rectifiers.

TRUE

FALSE

⇒ What is the frequency of pulse at the points

*a*,

*b*,

*c*in the circ

3 MHz

7.8 KHz

10 KHz

1 MHz

⇒ As per Euler's identity

*e*

^{jωt}= cos ω

*t*+

*j*sin ω

*t*

TRUE

FALSE

⇒ If

*f*=0

X

_{L}= 0 and X

_{C}= 0

X

_{L}= ∞, X

_{C}= ∞

X

_{L}= 0 and X

_{C}= ∞

X

_{L}= ∞ and X

_{C}= 0

⇒ A circuit is fed by two sources of different frequency and magnitudes 100 ∠0° V and 50 ∠30°V. The current in a particular branch is 10 ∠20° A. If the magnitudes of the sources are changed to 200 ∠0° V and 100 ∠0° V, the current in that branch should be

20 ∠20° A

10 ∠20° A

14.14 ∠20° A

10 ∠- 20° A

⇒ If 10 V is the peak voltage across the secondary of the transformer in a half wave rectifier (without any filter circuit), then the maximum voltage on the reverse biased diode will be

20 V

14.14 V

10 V

7.8 V

⇒ The characteristic equation of a control system is given as

*s*

^{4}+ 8

*s*

^{3}+ 24

*s*

^{2}+ 32

*s*+ K = 0. What is the range of values of K for this system to be stable?

0 ≤ K < 80

0 ≤ K < 100

0 ≤ K < 2300

0 ≤ K < 600

⇒ In figure, E = 1 V (rms value). The average power is 250 mW. Then phase angle between E and

90°

60°

45°

30°

⇒ The standard FORTRAN exponential form of decimal number - 0.000000023 is

2.3 E - 8

-2.3 E - 8

2.3 E - 7

-2.3 E - 7

⇒ Form factor for a sine wave is

1.414

0.707

1.11

0.637

⇒ In figure, the transmission parameters are A = C = 1, B = 2 and D = 3. Then Z

_{in12/13 Ω13/12 Ω3 Ω4 Ω}

⇒ The number of product terms in the minimized sum of product expression obtained through the following

*k*map is (where "

*d*" denotes don't care states)

2

3

4

5

⇒ At a temperature of 7 K, lead is a superconductor.

TRUE

FALSE

⇒ A constant

*k*band stop filter has cutoff frequencies of 1000 and 4000 Hz. The attenuation will be maximum when frequency is

4000 Hz

3000 Hz

2000 Hz

1000 Hz

⇒ In the circuit shown the voltage V

_{s}has a phase angle of __________ with respect to V

_{L120°60 °-90 °0°}

⇒ Which is known as flash converter?

Weighted resistor D/A converter

Parallel A/D converter

Stair step A/D converter

Up-down counter type A/D converter

⇒ The modulation index of an FM is changed from 0 to 1. How does the transmitted power change?

Gets halved

Gets doubled

Gets increased by 50 percent

Remains unchanged

⇒ In practical commercial FM system, channel bandwidth is

150 kHz

100 kHz

88 MHz

108 MHz

⇒ A transducer must have

good dynamic response

good sensitivity

good resolution

all of the above

⇒ In TE

_{10}mode of rectangular waveguide

there is one half sine wave variation along

*x*direction and one along

*y*direction

there is one half sine wave variation along

*y*direction and one along

*x*direction

there is one full sine wave variation along

*x*direction and one along

*y*direction

none of the above

⇒ Which of the following cannot be used to demodulate SSB?

Complete phase-shift generator

Product detector

Diode balanced modulator

Bipolar transistor balanced modulator