MCQ on Class 12 Physics Chapter 14 Semiconductor Electronics: Materials, Devices and Simple Circuits with Answers

We have compiled the MCQ Questions for Class 12 Chemistry Chapter 14 Semiconductor Electronics: Materials, Devices and Simple Circuits with Answers Pdf free download covering the entire syllabus for JEE/NEET and Boards. Practice MCQ Questions for Class 12 Physics with Answers on a daily basis and score well in exams. Refer to the Semiconductor Electronics: Materials, Devices and Simple Circuits Class 12 MCQs Quiz Questions with Answers here along with a detailed explanation

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Semiconductor Electronics: Materials, Devices and Simple Circuits Class 12 MCQs Questions with Answers

MCQ Questions for Class 12 Physics Chapter 14 Semiconductor Electronics: Materials, Devices and Simple Circuits with Answers

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1. In an n-p-n transistor circuit the collector current is 18 mA. If 90% of the electrons emitted reach the collector, than the emitter current is:1.6 mA

 
 
 
 

2.  
Diffusion current in a p-n junction is greater than the drift
current in magnitude

 
 
 
 

3. The mobility of conduction electrons is greater than that of holes since electrons is greater than that of holes since electrons.

 
 
 
 

4. Winch of the following gate is not an universal gate?

 
 
 
 

5.  
Let nh and ne be the number of holes and conduction electrons in an extrinsic semiconductor. Then

 
 
 
 

6. Semiconductors of both p-type and n-type are produced by:

 
 
 
 

7. If the conductivity of a semiconductor is only due to break of the covalent band due to the thermal excitation, then the semiconductor is called:

 
 
 
 

8. The relation between number of free electrons (n) in a semiconductor and temperature (T) is given by:

 
 
 
 

9. The energy band gap is maximum in which of the following?

 
 
 
 

10. The Voltage gain is highest for

 
 
 
 

11.  
What is a rectifier used for?

 
 
 
 

12.  
 In good conducrors of electricity the type of bonding that exist is

 
 
 
 

13. An oscillator is an amplifier with:

 
 
 
 

14. A p-type semiconductor is:

 
 
 
 

15. Energy bands in solids are a consequence of:

 
 
 
 

16.  
Region without free electrons and holes in a p-n junction is

 
 
 
 

17. In principle, Boolean algerbra is based on:

 
 
 
 

18. p-n junction diode can be used as:

 
 
 
 

19. On applying reverse bias to a junction diode, it:

 
 
 
 

20.  
At which temperature, a pure semiconductor behaves slightly as a conductor?

 
 
 
 

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