You are currently viewing Semi Conductor Electronics CBSE Class 12 Physics MCQ Questions with Answer Keys Solutions

Semi Conductor Electronics CBSE Class 12 Physics MCQ Questions with Answer Keys Solutions

If you are preparing for CBSE Class 12 Board Exam Term 1 which will be an objective type questions paper, then you need to practice multiple choice questions of Class 12 Physics Chapterwise. In this article of AKVTutorials, you will get Semi Conductor Electronics CBSE Class 12 Physics MCQ Questions with Answer Keys Solutions

MCQ Questions for Class 12 Physics Chapter 14 Question No 11:

The depletion layer in the P-N junction region is caused by:

Option A : Drift of holes 

Option B : Diffusion of charge carriers 

Option C : Migration of impurity ions 

Option D : Drifts of electrons 

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Option B  : Diffusion of charge carriers

MCQ Questions for Class 12 Physics Chapter 14 Question No 12:

Which diode of the following is used in forward bias?

Option A : Light Emitting diode 

Option B : Zener diode  

Option C : Photo diode 

Option D : All of these 

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Option A : Light Emitting diode  

MCQ Questions for Class 12 Physics Chapter 14 Question No 13:

Which one of the following diodes, used to obtain voltage regulation

Option A : Light Emitting diode 

Option B : Zener diode  

Option C : Photo diode 

Option D : Pn diode 

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Option B : Zener diode 

MCQ Questions for Class 12 Physics Chapter 14 Question No 14:

In an unbiased p-n junction, holes diffuse from the p-region to n-region because:

Option A : Free electrons in the n-region attract them  

Option B : They move across the junction by the potential difference 

Option C : Hole concentration in p-region is more as compared to n-region 

Option D : All of the above  

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Option C : Hole concentration in p-region is more as compared to n-region

MCQ Questions for Class 12 Physics Chapter 14 Question No 15:

The inverter gate is:

Option A : NOT gate  

Option B : OR gate 

Option C : AND gate 

Option D : NAND gate

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Option A : NOT gate 

MCQ Questions for Class 12 Physics Chapter 14 Question No 16:

The input of a NAND gate are connected together. The resulting circuit is:

Option A : NOT gate  

Option B : OR gate 

Option C : AND gate 

Option D : AND gate

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Option A  : NOT gate  

MCQ Questions for Class 12 Physics Chapter 14 Question No 17:

The NOR gate is OR gate followed by:

Option A : NOT gate  

Option B : OR gate 

Option C : AND gate 

Option D : AND gate

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Option A : NOT gate 

MCQ Questions for Class 12 Physics Chapter 14 Question No 18:

An OR gate gate has 4 inputs. One inputs is high and the other three are low. The output is:

Option A : Low

Option B : High

Option C : Alternately high and low

Option D : May be high or low depending on relative

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Option B : High

MCQ Questions for Class 12 Physics Chapter 14 Question No 19:

How many NAND gates are used to form an AND gate?

Option A : 1

Option B : 2

Option C : 3

Option D : 4

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Option B : 2

MCQ Questions for Class 12 Physics Chapter 14 Question No 20:

A PN junction diode is connected to a battery of emf 5.5 V and external resistance 5.1 kΩ. The barrier potential in the diode  is 0.4 V. The current in the circuit is:

Option A : 1.08 mA

Option B : 0.08 mA

Option C : 1 mA

Option D : 1A

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Option C : 1 mA

CBSE Class 12 Physics Chapterwise MCQ
1 : Electric Charge & Fields MCQs
| 1 to 10 | 11 to 20
2 : Electrostatics Potential and Capacitance MCQs
| 1 to 10 | 11 to 20
3 : Current Electricity MCQs
| 1 to 10 | 11 to 20
4 : Moving charges and Magnetism MCQs
| 1 to 10 | 11 to 20
5 : Magnetism and Matter MCQs
| 1 to 10 | 11 to 20
6 : Electromagnetic Induction MCQs
| 1 to 10 | 11 to 20
7 : Alternating Current MCQs
| 1 to 10 | 11 to 20
8 : Electromagnetic Waves MCQs
| 1 to 10 | 11 to 20
9 : Ray Optics and Optical Instruments MCQs
| 1 to 10 | 11 to 20
10 : Wave Optics MCQs
| 1 to 10 | 11 to 20
11 : Dual Nature of Radiation MCQs
| 1 to 10 | 11 to 20
12 : Atoms MCQs
| 1 to 10 | 11 to 20
13 : Nuclei MCQs
| 1 to 10 | 11 to 20
14 : Semi Conductor Electronics MCQs
| 1 to 10 | 11 to 20
15 : Communication Systems MCQs
| 1 to 10 | 11 to 20

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