GATE (Graduate Aptitude Test in Engineering) Electronics: Questions 590 - 593 of 1076

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Question 590

Appeared in Year: 2014 (UGC-NET)

Question

MCQ▾

The carrier velocity in a silicon p-i-n photodiode with depletion layer width is m/s. The longest transit time is for the carriers is given by: (June)

Choices

Choice (4)Response

a.

62 ns

b.

2.5 ns

c.

8.3 ns

d.

52 ns

Question 591

Appeared in Year: 2014 (UGC-NET)

Question

MCQ▾

Semiconductors have (June)

Choices

Choice (4)Response

a.

Negative temperature coefficient of resistance

b.

Resistance does not change with temperature

c.

Zero temperature coefficient of resistance

d.

Positive temperature coefficient of resistance

Question 592

Fourier Series and Fourier Transform Representations

Appeared in Year: 2013 (UGC-NET)

Question

Assertion-Reason▾

Assertion(Ꭺ)

For a function to be odd (September)

Reason(Ꭱ)

If a function is odd, its Fourier series only contains cosine terms.

Choices

Choice (4)Response

a.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

b.

Both Ꭺ and Ꭱ are false

c.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

d.

Ꭺ is true but Ꭱ is false

Question 593

Appeared in Year: 2013 (UGC-NET)

Question

MCQ▾

Routh՚s array for a system is given below: (September)

Routh՚s Array for a System is Given Below
135
129
15
-3
5

The system is

Choices

Choice (4)Response

a.

Conditionally stable

b.

Stable

c.

Unstable

d.

Marginally stable

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