मराठी
कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

Under the influence of electric field, which of the following statements is true about the movement of electrons and holes in a p-type semiconductor? (i) Electron will move towards the positvely - Chemistry

Advertisements
Advertisements

प्रश्न

Under the influence of electric field, which of the following statements is true about the movement of electrons and holes in a p-type semiconductor?

(i) Electron will move towards the positvely charged plate through electron holes.

(ii) Holes will appear to be moving towards the negatively charged plate.

(iii) Both electrons and holes appear to move towards the positively charged plate.

(iv) Movement of electrons is not related to the movement of holes.

टीपा लिहा
Advertisements

उत्तर

(i) Electron will move towards the positvely charged plate through electron holes.

(ii) Holes will appear to be moving towards the negatively charged plate.

Explanation:

In p-type semiconductor, the conductivity is due to existence of hole. When electric field is applied to p-type semiconductor hole starts moving towards negatively charged plate and electron towards positively charged plate.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 1: Solid States - Exercises [पृष्ठ ८]

APPEARS IN

एनसीईआरटी एक्झांप्लर Chemistry [English] Class 12
पाठ 1 Solid States
Exercises | Q II. 42. | पृष्ठ ८

व्हिडिओ ट्यूटोरियलVIEW ALL [1]

संबंधित प्रश्‍न

In a semiconductor, acceptor impurity is.................................

  1. antimony
  2. indium
  3. phosphorous
  4. arsenic

What type of semiconductor is obtained when silicon is doped with boron? 

 


To prepare n-type semiconductor the impurity to be added to silicon should have the following number of valence electrons:

(a) 2

(b) 3

(c) 4

(d) 5


When a hole is produced in P-type semiconductor, there is _______.


Give reasons : Silicon on doping with Phosphorous forms n-type semiconductor.


A pure semiconductor is ________.

(a) an extrinsic semiconductor

(b) an intrinsic semiconductor

(c) p-type semiconductor

(d) n-type semiconductor


Distinguish between p-type and n-type semiconductors.


A group of 14 elements is converted into n-type semiconductor by doping it with:


In n-type semiconductor, current is carried by ____________.


Which transition metal oxide has appearance and conductivity like that of copper?


To get n-type of semiconductor, germanium should be doped with ____________.


Which of the following oxides behaves as conductor or insulator depending upon temperature?


Which of the following is true about the charge acquired by p-type semiconductors?


To get a n-type semiconductor from silicon, it should be doped with a substance with valence ______.


A perfect crystal of silicon (Figure) is doped with some elements as given in the options. Which of these options show n-type semiconductors?


Explain why does conductivity of germanium crystals increase on doping with galium.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×