NTA-NET (Based on NTA-UGC) Electronic Science (Paper-II): Questions 108 - 110 of 132

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Question number: 108

» Instrumentation » L and C

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Appeared in Year: 2018

Match List-Ⅰ List-Ⅱ▾

Question

Following are the inductances for different Geometries used in Microwaves. Match the following: (July)

List-Ⅰ (Inductor) List-Ⅱ (Inductance In (pH/mil) )

(A)

Square spiral inductor

(i)

l [

(B)

Circular loop inductor

(ii)

l [

(C)

Wire inductor

(iii)

(D)

Circular spiral inductor

(iv)

Choices

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

a.

  • (iv)
  • (ii)
  • (i)
  • (iii)

b.

  • (i)
  • (iv)
  • (ii)
  • (iii)

c.

  • (ii)
  • (iv)
  • (iii)
  • (i)

d.

  • (iv)
  • (i)
  • (ii)
  • (iii)

Question number: 109

» Solid State Device and Fabrication » Tunnel Diode

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Appeared in Year: 2018

Assertion-Reason▾

Question

Assertion (Ꭺ)

The tunnel diode shows the negative differential resistance between peak voltage and valley voltage. (July)

Reason (Ꭱ)

In a tunnel diode, for a voltage larger than valley voltage, the current increases exponentially.

Choices

Choice (4) Response

a.

Both Ꭺ and Ꭱ are false

b.

Ꭺ is true but Ꭱ is false

c.

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

d.

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

Question number: 110

» Linear Integrated Circuits and Op-Amps » Oscillators

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Appeared in Year: 2018

Match List-Ⅰ List-Ⅱ▾

Question

Match the following lists: (July)

List-Ⅰ (Column-I) List-Ⅱ (Column-II)

(A)

Image of Unstable system

Image of Unstable System

Image of Unstable system

(i)

Stable but oscillatory system

(B)

Image of Stable and well damped system

Image of Stable and Well Damped System

Image of Stable and well damped system

(ii)

Stable and well damped system

(C)

Image of Marginally unstable system

Image of Marginally Unstable System

Image of Marginally unstable system

(iii)

Unstable system

(D)

Image of Stable but oscillatory system

Image of Stable but Oscillatory System

Image of 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)

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