GATE (Graduate Aptitude Test in Engineering) Electronics: Questions 349 - 351 of 1076

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Question 349

Criterion for Oscillation, Single-Transistor and Opamp Configurations

Appeared in Year: 2018 (UGC-NET)

Question

Match List-Ⅰ List-Ⅱ▾

Match the following lists: (July)

List-Ⅰ (Column-I)List-Ⅱ (Column-II)
(A)
Unstable System
(i)

Stable but oscillatory system

(B)
Stable and Well Damped System
(ii)

Stable and well damped system

(C)
Marginally Unstable System
(iii)

Unstable system

(D)
Stable but Oscillatory System
(iv)

Marginally unstable system

Choices

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

a.

  • (iv)
  • (i)
  • (iii)
  • (ii)

b.

  • (iii)
  • (ii)
  • (iv)
  • (i)

c.

  • (i)
  • (ii)
  • (iv)
  • (iii)

d.

  • (ii)
  • (iii)
  • (i)
  • (iv)

Question 350

Function Generators, Wave-Shaping Circuits and 555 Timers

Appeared in Year: 2018 (UGC-NET)

Question

Match List-Ⅰ List-Ⅱ▾

Match the following lists: (July)

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

FSK

(i)

(B)

BPSK

(ii)

(C)

FM wave

(iii)

(D)

AM wave

(iv)

Choices

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

a.

  • (iv)
  • (iii)
  • (ii)
  • (i)

b.

  • (ii)
  • (iii)
  • (i)
  • (iv)

c.

  • (iii)
  • (iv)
  • (ii)
  • (i)

d.

  • (ii)
  • (iii)
  • (iv)
  • (i)

Question 351

Appeared in Year: 2018 (UGC-NET)

Question

Assertion-Reason▾

Assertion(Ꭺ)

For transmission lines, having their length equal to odd multiple of , the following expression are given sin =

(July)

Reason(Ꭱ)

Under the above conditions, i.e.. for odd multiples of Quarter wavelengths the input impedance becomes equal to

Choices

Choice (4)Response

a.

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

b.

Ꭺ is true but Ꭱ is false

c.

Both Ꭺ and Ꭱ are false

d.

Ꭺ is false but Ꭱ is true

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