GATE (Graduate Aptitude Test in Engineering) Electronics: Questions 757 - 759 of 1076

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Question 757

Clipping, Clamping and Rectifiers

Appeared in Year: 2014 (UGC-NET)

Question

Match List-Ⅰ List-Ⅱ▾

Match the following lists: (December)

List-Ⅰ (Column-I)List-Ⅱ (Column-II)
(A)

n-parameters

(i)

series diode clipper

(B)

Integrator

(ii)

O/P voltage varies as the slope of i/p voltage

(C)

Differentiator

(iii)

Noise division

(D)

Half-wave rectifier

(iv)

Function of a Q point

Choices

Choice (4)Response
  • (A)
  • (B)
  • (C)
  • (D)

a.

  • (i)
  • (iii)
  • (iv)
  • (ii)

b.

  • (iv)
  • (iii)
  • (ii)
  • (i)

c.

  • (ii)
  • (iii)
  • (i)
  • (iv)

d.

  • (iv)
  • (ii)
  • (iii)
  • (i)

Question 758

Ripple Removal and Regulation

Appeared in Year: 2014 (UGC-NET)

Question

Assertion-Reason▾

Assertion(Ꭺ)

In applications such as FM and FSK, VCO plays an important role. (December)

Reason(Ꭱ)

The frequency control is easily possible by varying d. c. voltage.

Choices

Choice (4)Response

a.

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

b.

Ꭺ is true but Ꭱ is false

c.

Ꭺ is false but Ꭱ is true

d.

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

Question 759

Circuits for Analog Communications

Appeared in Year: 2014 (UGC-NET)

Question

MCQ▾

The following is true for the multimode graded index fiber: (December)

1. The refractive index varies as a function of radial distance from the centre.

2. The refractive index undergoes sudden change at the cladding boundary.

3. It provides better bandwidth and the data rate than the multimode step index.

4. It provides the better bandwidth and data rate than single mode step index.

Choices

Choice (4)Response

a.

1 & 3

b.

2 & 4

c.

3 & 4

d.

1 & 4

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