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. | When a high voltage reference is required it is advantageous to use two or more zener diodes in series to allow |

A. | higher voltage [Wrong Answer] |

B. | higher dissipation [Wrong Answer] |

C. | lower temperature coefficient [Wrong Answer] |

D. | all of the above [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 :**

⇒ For satellite transmission, analog signals may be converted into digital form with the help of

modem

transponder

codec

compandor

⇒ The total power radiated from an antenna system is determined by imagining that the antenna is at the centre of a very large

sphere

rectangle

square

ellipse

⇒ If the value of C

_{2}and C

_{3}are doubled, the oscillation frequency will be

quadrupled

doubled

unchanged

halved

⇒ For a paramagnetic material, susceptiblity increases with increasing temperature.

TRUE

FALSE

⇒ Circuit shown in the figur

astable multivibrator

monostable multivibrator

VCO

ramp Generator

⇒ In pulse width modulation of chopper

T is kept constant and T

_{on}is varied

T

_{on}is kept constant T is varied

both T and T

_{on}are varied

either T or T

_{on}is varied

⇒ An RLC series circuit

resonant frequency is high

Q is high

bandwidth is large

Q is low

⇒ Photoconductive devices uses

metallic conductors

good quality insulators

semiconductors

either (a) or (c)

⇒ For a series resonant circuit at low frequency impedance is __________ and at high frequency circuit impedance is __________ .

capacitive, inductive

inductive, capacitive

resistive, inductive

capacitive, resistive

⇒ The decimal equivalent of ABC

_{16}is

348

2583

2748

33

⇒

**Assertion (A):** The impedance of a series resonant circuit is minimum at resonance.

**Reason (R):** Resonance condition implies unity power factor condition.

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

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

A is true but R is false

A is false but R is true

⇒ Which of the following devices is used at the first stage of an electronic voltmeter?

BJT

SCR

MOSFET

UJT

⇒ Find the output voltage for 011100 in a 6 bit R-2

*R*ladder D/A converter has a reference voltage of 6.5 V.

6.4 V

2.84 V

0.1 V

8 V

⇒ For an N-point FFT algorithm with N = 2

^{m}which one of the following statements is TRUE?

It is not possible to construct a signal flow graph with both input and output in normal order

The number of butterflies in the

*m*

^{th}stage is N/m

In-place computation requires storage of only 2N node data

Computation of a butterfly requires only one complex multiplication

⇒ The value of susceptibility in case of vacuum is taken as

zero

0.5

unity

infinity

⇒

Match the following:

List I (Operation in Basic) | List II (Priority) | ||
---|---|---|---|

A. | Exponentiation | 1. | 1 |

B. | Multiplication and division | 2. | 2 |

C. | Addition and subtraction | 3. | 3 |

D. | Expression within parenthesis | 4. | 4 |

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

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

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

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

⇒ A voltage

*v*= 100 sin ω

*t*+ 10 sin 5 ω

*t*is applied to a pure capacitor having capacitance of 1 μF. If ω = 314 rad/sec, the current through the capacitor is

0.0314 cos 314

*t*+ 0.0157 cos 1570

*t*

0.0314 sin 314

*t*+ 0.0157 sin 1570

*t*

0.0314 cos 314

*t*+ 0.0314 cos 1570

*t*

0.0157 cos 314

*t*+ 0.0157 cos 1570

*t*

⇒ For a P-N diode, the number of minority carriers crossing the junction depends on

forward bias voltage

potential barrier

rate of thermal generation of electron hole pairs

none of the above

⇒ The number of distinct Boolean expression of 4 variables is

16

256

1024

65536

⇒ The use of free wheeling diode in controlled rectifier improves the waveshape of load current.

TRUE

FALSE

⇒ A transmitted using AM has in modulated carrier output power of 10 KW and can be modulated to a maximum depth of 90% by a sinusoidal modulating voltage without causing overloading. Find the value to which an modulated carrier power can be increased without resulting in overloading if the maximum permitted modulating index is 40%

14 KW

12.96 KW

26.96 KW

2.96 KW

⇒ The

*v*-

*i*characteristics of a FET is shown in figure. In which region is the device biased for small signal amplifica

AB

BC

CD

BD

⇒ In an induction wattmeter, the shading bands are made of non conducting material.

TRUE

FALSE

⇒ The range of a cordless telephone is about

1000 m

500 m

100 m

10 m

⇒ When microprocessor processes both positive and negative numbers, the representation used is

l's complement

2's complement

signed binary

any of the above

⇒ Consider the following statements, regarding an OP AMP:

- All types of negative feedback reduce non-linear distortion.
- All types of negative feedback reduce the output offset voltage.
- Non-inverting (current and voltage) feedback increases the input impedance.
- Inverting (current and voltage) feedback decreases input impedance.

1 only

2 and 3 only

2 and 4 only

1, 2, 3 and 4

⇒ Consider the following expression for the driving point imped

2 and 4

1 and 3

1 and 4

2 and 3

⇒ A broadside array is shown in figure in which the elements are placed at equal distances. The direction of maximum radiation is represented

AA

BB

CC

DD

⇒ A duplexer is a device used to

feed more than one receiver from a single antenna

connect two transmitters to the same antenna

connect a receiver and a transmitter to the same antenna

none of these

⇒ Ac signals are given to both inverting and non-inverting terminals of an op-amp. When will the output maximum

when the phase difference between the inputs is 0°

when the phase difference between the inputs in 90°

when the phase difference between the inputs is 180°

when the phase difference between the inputs is 0 or 180°