Electronics GK MCQ question and answer with solution | Physics Gk MCQs Page-4 section-1

31.
When donor type impurity is added to the semiconductor system. Then

A. electrons will be generated and N-type material

B. electrons will be generated and P-type material

C. Holes will be generated and P-type material

D. Holes will be generated and N-type material

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32.
Assertion (A) An N-type semiconductor has a large number of electrons but still it is electrically neutral.
Reason (R) An N-type semiconductor is obtained by doping an intrinsic semiconductor with a pentavalent impurity.

A. Both A and R are true and R is the correct explanation of A

B. Both A and R are true, but R is not the correct explanation of A

C. A is true, but R is false

D. A is false, but R is true

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33.
Which of the following is widely used in making semiconductor chips?

A. Radium

B. Sodium

C. Germanium

D. Sulphur

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34.
Doping in semi-conductor glossary is:

A. Semi-conductor is a process of purifying matter

B. Doping is a process of increasing the electrons or holes

C. Is a process of increasing external atoms

D. Is a process of increasing the biased potential

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35.
Match the following.

List-I List-II

a. Germanium at 0 K 1. n-type semiconductor

b. Germanium at room temperature 2. p-type semiconductor

c. Germanium doped with indium 3. Insulator

d. Germanium doped with arsenic 4. Intrinsic semiconductor

A. a-1, b-2, c-3, d-4

B. a-4, b-3, c-2, d-1

C. a-3, b-4, c-2, d-1

D. a-4, b-3, c-1, d-2

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36.
The purpose of the amplifier is to:

A. To increase the voltage, power or current, of the input signals

B. Decreasing the weighted signal under its input

C. Causing distortion in the weighted signal

D. Both B and C

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37.
Which of the following is not a semiconductor?

A. Silicon

B. Krypton

C. Selenium

D. Germanium

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38.
Integrated circuits are made up of which of the following?

A. Aluminium

B. Silicon

C. Glass

D. Iron

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39.
The diode is used as a . . . . . . . .

A. rectifier

B. amplifier

C. magnifier

D. purifier

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40.
The term LASER stand for

A. Light Amplification by Stimulated Emission of Radiation

B. Light Amplification by Spontaneous Emission of Radiation

C. Light Amplification by Stimulated Emission of Rays

D. Light Amplification by Stimulated Energy of Radiation

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List-I	List-II
a. Germanium at 0 K	1. n-type semiconductor
b. Germanium at room temperature	2. p-type semiconductor
c. Germanium doped with indium	3. Insulator
d. Germanium doped with arsenic	4. Intrinsic semiconductor

Electronics GK MCQ question and answer with solution | Physics Gk MCQs

31. When donor type impurity is added to the semiconductor system. Then

Answer & Solution

32. Assertion (A) An N-type semiconductor has a large number of electrons but still it is electrically neutral. Reason (R) An N-type semiconductor is obtained by doping an intrinsic semiconductor with a pentavalent impurity.

Answer & Solution

33. Which of the following is widely used in making semiconductor chips?

Answer & Solution

34. Doping in semi-conductor glossary is:

Answer & Solution

35. Match the following. List-I List-II a. Germanium at 0 K 1. n-type semiconductor b. Germanium at room temperature 2. p-type semiconductor c. Germanium doped with indium 3. Insulator d. Germanium doped with arsenic 4. Intrinsic semiconductor

Answer & Solution

36. The purpose of the amplifier is to:

Answer & Solution

37. Which of the following is not a semiconductor?

Answer & Solution

38. Integrated circuits are made up of which of the following?

Answer & Solution

39. The diode is used as a . . . . . . . .

Answer & Solution

40. The term LASER stand for

Answer & Solution

31.
When donor type impurity is added to the semiconductor system. Then

32.
Assertion (A) An N-type semiconductor has a large number of electrons but still it is electrically neutral.
Reason (R) An N-type semiconductor is obtained by doping an intrinsic semiconductor with a pentavalent impurity.

33.
Which of the following is widely used in making semiconductor chips?

34.
Doping in semi-conductor glossary is:

35.
Match the following.

List-I List-II

a. Germanium at 0 K 1. n-type semiconductor

b. Germanium at room temperature 2. p-type semiconductor

c. Germanium doped with indium 3. Insulator

d. Germanium doped with arsenic 4. Intrinsic semiconductor

36.
The purpose of the amplifier is to:

37.
Which of the following is not a semiconductor?

38.
Integrated circuits are made up of which of the following?

39.
The diode is used as a . . . . . . . .

40.
The term LASER stand for