NTA-NET (Based on NTA-UGC) Electronic Science (Paper-II): Questions 22 - 26 of 132

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Question number: 22

» Control System » Error Amplifier

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Appeared in Year: 2018

MCQ▾

Question

A Travelling Wave Tube Amplifier (TWTA) has the following properties:

1) It provides an octave bandwidth.

2) It provides an approximate gain of 40dB and more.

3) It has a low noise figure.

4) It has a very high noise figure.

Out of the above statements following is correct: (July)

Choices

Choice (4) Response

a.

1) and 4) only

b.

1) and 2) only

c.

1), 2) and 4) only

d.

1) and 2) and 3) only

Question number: 23

» Optical Communication » Modes

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Appeared in Year: 2018

MCQ▾

Question

A single mode fibre with radius of , with core-refractive index and that of cladding , the cut-off wavelength is given by: (July)

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 24

» Solid State Device and Fabrication » JFET

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Appeared in Year: 2018

MCQ▾

Question

In a JFET, the maximum value of Trans conductance is: (July)

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 25

» Networks and Theorems » Laplace

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Appeared in Year: 2018

MCQ▾

Question

The Laplace transform of a signal is given as; . The signal will be: (July)

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 26

» Microprocessor and Microcontroller » Introduction of Microcontrollers ( 8 Bit) - 8031, 8051 and 8048

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MCQ▾

Question

XTAL frequency of 8051 microcontroller lies between ________.

Choices

Choice (4) Response

a.

10MHz-15MHz

b.

10MHz-40MHz

c.

15MHz-50MHz

d.

15MHz-30MHz

Developed by: