NTA-NET (Based on NTA-UGC) Electronic Science (Paper-II): Questions 105 - 107 of 124

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Question number: 105

» Solid State Device and Fabrication » PN Junction

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Appeared in Year: 2018

Assertion-Reason▾

Question

Assertion (Ꭺ)

In a p-n junction the electron crossing the junction from right to left constitute a current in the same direction as hole crossing the junction from left to right. (July)

Reason (Ꭱ)

In a p-n junction, the low value of depletion region capacitance can be obtained with reverse biasing.

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 number: 106

» Microwave Communications » Maxwell's Equations

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Appeared in Year: 2018

Assertion-Reason▾

Question

Assertion (Ꭺ)

The magnetic flux per unit length through a loop of small length is called the magnetic flux density. (July)

Reason (Ꭱ)

The direction of magnetic flux density is taken as the normal to the plane of the loop when oriented to enclose maximum flux.

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.

Ꭺ is false but Ꭱ is true

Question number: 107

» Solid State Device and Fabrication » Electronic Transport in Semiconductor

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Appeared in Year: 2018

MCQ▾

Question

The following semiconductor material are given

1) C

2) Si

3) GaAs

4) InP

Arrange the above in the increasing order of their Hole Mobility at K.

(July)

Choices

Choice (4) Response

a.

4), 3), 2), 1)

b.

3), 4), 1), 2)

c.

2), 3), 4), 1)

d.

1), 2), 3), 4)