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
Show/Hide Answer
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
Show/Hide Answer
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
Show/Hide Answer
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
Show/Hide Answer
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
Show/Hide Answer
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
Show/Hide Answer
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
Show/Hide Answer
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
Show/Hide Answer
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
Show/Hide Answer
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
Show/Hide Answer
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 |
