GATE (Graduate Aptitude Test in Engineering) Electronics: Questions 547 - 550 of 1076

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Question 547

Appeared in Year: 2013 (UGC-NET)

Question

MCQ▾

Photoconductive devices are made of

Choices

Choice (4)Response

a.

Radioactive materials

b.

Highly conductive materials

c.

Highly insulating materials

d.

Semiconductor materials

Question 548

PCM, DPCM, Digital Modulation Schemes

Appeared in Year: 2013 (UGC-NET)

Question

MCQ▾

The balanced modulator essentially is

Choices

Choice (4)Response

a.

A product modulator

b.

An oscillator

c.

A mixer

d.

An amplifier

Question 549

Differential and Integral Forms and Their Interpretation

Appeared in Year: 2013 (UGC-NET)

Question

MCQ▾

Consider the following frequency spectrum of the electro-magnetic wave:

1. FM radio waves

2. Microwaves

3. Visible range

4. X-ray

Write down the frequency spectrum in ascending order

Choices

Choice (4)Response

a.

1,2, 3,4

b.

4,3, 2,1

c.

1,3, 2,4

d.

3,2, 4,1

Question 550

Differential and Integral Forms and Their Interpretation

Appeared in Year: 2013 (UGC-NET)

Question

Match List-Ⅰ List-Ⅱ▾

Match the following List -i with List-ii

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

Biot՚s law

(i)

Force due to a current carrying conductor

(B)

Ampere՚s law

(ii)

Electric flux density at a point

(C)

Coulomb՚s law

(iii)

Magnetic flux density at a point

(D)

Gauss՚s law

(iv)

Force on a charge

Choices

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

a.

  • (i)
  • (iv)
  • (ii)
  • (iii)

b.

  • (ii)
  • (iv)
  • (iii)
  • (i)

c.

  • (ii)
  • (i)
  • (iv)
  • (iii)

d.

  • (i)
  • (iii)
  • (iv)
  • (ii)

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