Semiconductor Devices Test

Result

Semiconductor Devices Test - 45

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Weekly Quiz Competition

Question 1
4 / -1

The ionic bond is absent in

A
NaCl

B
CsCl

C
LiF

D
H₂O
Question 2
4 / -1

The term liquid crystal refers to a state that is intermediate between

A
Crystalline solid and amorphous liquid

B
Crystalline solid and vapour

C
Amorphous liquid and its vapour

D
A crystal immersed in a liquid
Question 3
4 / -1

A Si and a Ge diode has identical physical dimensions. The band gap in Si is larger than that in Ge. An identical reverse bias is applied across the diodes

A
The reverse current in Ge is larger than that in Si

B
The reverse current in Si is larger than that in Ge

C
The reverse current in identical in the two diodes

D
The relative magnitude of the reverse currents cannot be determined from the given data only
Question 4
4 / -1

Which of the following is a dichroic crystal?

A
Mica

B
Selenite

C
Quartz

D
Tourmaline
Question 5
4 / -1

The conduction band in a solid is partially filled at 0 K. The solid sample is a

A
Conductor

B
Semiconductor

C
Insulator

D
None of these
Question 6
4 / -1

The crystal structure can be studied by using

A
UV rays

B
X-rays

C
IR radiation

D
Microwaves
Question 7
4 / -1

The majority charge carriers in P-type semiconductor are

A
Electrons

B
Protons

C
Holes

D
Neutrons
Question 8
4 / -1

A P-type semiconductor can be obtained by adding

A
Arsenic to pure silicon

B
Gallium to pure silicon

C
Antimony to pure germanium

D
Phosphorous to pure germanium
Question 9
4 / -1

The valence of an impurity added to germanium crystal in order to convert it into a P-type semiconductor is

A
6

B
5

C
4

D
3
Question 10
4 / -1

In a semiconductor, the concentration of electrons is 8 × 10¹⁴/cm³ and that of the holes is 5 × 10¹²cm³. The semiconductor is

A
P-type

B
N-type

C
Intrinsic

D
PNP-type

Solution

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Semiconductor Devices Test - 45

Result

Semiconductor Devices Test - 45

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SHARING IS CARING

Question 1

NaCl

CsCl

LiF

H2O

Question 2

Crystalline solid and amorphous liquid

Crystalline solid and vapour

Amorphous liquid and its vapour

A crystal immersed in a liquid

Question 3

The reverse current in Ge is larger than that in Si

The reverse current in Si is larger than that in Ge

The reverse current in identical in the two diodes

The relative magnitude of the reverse currents cannot be determined from the given data only

Question 4

Mica

Selenite

Quartz

Tourmaline

Question 5

Conductor

Semiconductor

Insulator

None of these

Question 6

UV rays

X-rays

IR radiation

Microwaves

Question 7

Electrons

Protons

Holes

Neutrons

Question 8

Arsenic to pure silicon

Gallium to pure silicon

Antimony to pure germanium

Phosphorous to pure germanium

Question 9

6

5

4

3

Question 10

P-type

N-type

Intrinsic

PNP-type

Solution

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Question Analysis

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H₂O