GATE (Graduate Aptitude Test in Engineering) Electronics: Questions 412 - 414 of 1076

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Question 412

Circuits for Analog Communications

Appeared in Year: 2016 (UGC-NET)

Question

Match List-Ⅰ List-Ⅱ▾

Match the following lists:

List-Ⅰ (Medium)List-Ⅱ (Index of Refraction)
(A)

Water

(i)

1.0003

(B)

Silicon

(ii)

1.33

(C)

Air

(iii)

1.5 – 1.9

(D)

Glass Fibre

(iv)

3.4

Choices

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

a.

  • (iii)
  • (iv)
  • (ii)
  • (i)

b.

  • (ii)
  • (i)
  • (iv)
  • (iii)

c.

  • (ii)
  • (iv)
  • (i)
  • (iii)

d.

  • (ii)
  • (i)
  • (iii)
  • (iv)

Question 413

Discrete-Time Fourier Transform (DTFT), DFT, FFT

Appeared in Year: 2016 (UGC-NET)

Question

Assertion-Reason▾

Assertion(Ꭺ)

Networks that is quite stable and relatively insensitive to temperature

Variations have low stability factors.

Reason(Ꭱ)

The stability factors are defined as:

Where signifies the change in the quantity.

Choices

Choice (4)Response

a.

Ꭺ is false but Ꭱ is true

b.

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

c.

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

d.

Ꭺ is true but Ꭱ is false

Question 414

Appeared in Year: 2018 (UGC-NET)

Question

MCQ▾

A Hall-effect element is used for the measurement of magnetic field of 0.8 . The thickness of the element is 2.5 mm and is of bismuth material. If the current passed through the element is 4A, then the Hall emf developed will be: (Hall coefficient is ) (December)

Choices

Choice (4)Response

a.

b.

c.

d.

Developed by: