GATE (Graduate Aptitude Test in Engineering) Electronics: Questions 569 - 572 of 1076

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Question 569

Appeared in Year: 2014 (UGC-NET)

Question

MCQ▾

For a JFET, above the pinch-off voltage, as the drain voltage increases, the (June)

Choices

Choice (4)Response

a.

The drain current increases linearly.

b.

The drain current varies parabolically.

c.

The drain current decreases.

d.

The drain current remains constant.

Question 570

Appeared in Year: 2013 (UGC-NET)

Question

MCQ▾

The p-n junction diode is a (September)

Choices

Choice (4)Response

a.

Vacuum device

b.

Unilateral device

c.

Passive device

d.

Bilateral device

Question 571

Sample and Hold Circuits, ADCs and DACs

Appeared in Year: 2013 (UGC-NET)

Question

Assertion-Reason▾

Assertion(Ꭺ)

Dual slope A/D converter is the most preferred conversion technique employed in most of the digital Multimeters. (September)

Reason(Ꭱ)

Dual slope A/D converter provides high accuracy while at the same time suppresses the HUM effect on the input signal.

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 true and Ꭱ is the correct explanation of Ꭺ

c.

Both Ꭺ and Ꭱ are false

d.

Ꭺ is false but Ꭱ is true

Question 572

Appeared in Year: 2014 (UGC-NET)

Question

Assertion-Reason▾

Assertion(Ꭺ)

Routh Hurwitz criterion gives both absolute as well as relative stability using characteristic equation. (June)

Reason(Ꭱ)

For a system to be stable all roots of characteristic equation must lie in left half of s-plane.

Choices

Choice (4)Response

a.

Ꭺ is true but Ꭱ is false

b.

Ꭺ is false but Ꭱ is true

c.

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

d.

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

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