NCERT Solutions Class 12 Physics Chapter 14 – Download PDF
Get here NCERT Solutions Class 12 Physics Chapter 14. These NCERT Solutions for Class 12 of Physics subject includes detailed answers of all the questions in Chapter 14 – Semiconductor Electronics Materials Devices And Simple Circuits provided in NCERT Book which is prescribed for class 12 in schools.
Book: National Council of Educational Research and Training (NCERT)
Class: 12th Class
Subject: Physics
Chapter: Chapter 14 – Semiconductor Electronics Materials Devices And Simple Circuits
NCERT Solutions Class 12 Physics Chapter 14 – Free Download PDF
NCERT Solutions Class 12 Physics Chapter 14 – Semiconductor Electronics Materials Devices And Simple Circuits
Question 14.1:
In an n-type silicon, which of the following statement is true:
(a) Electrons are majority carriers and trivalent atoms are the dopants.
(b) Electrons are minority carriers and pentavalent atoms are the dopants.
(c) Holes are minority carriers and pentavalent atoms are the dopants.
(d) Holes are majority carriers and trivalent atoms are the dopants.
Answer
The correct statement is (c).
In an n-type silicon, the electrons are the majority carriers, while the holes are the minority carriers. An n-type semiconductor is obtained when pentavalent atoms, such as phosphorus, are doped in silicon atoms.
Question 14.2:
Which of the statements given in Exercise 14.1 is true for p-type semiconductors.
Answer
The correct statement is (d).
In a p-type semiconductor, the holes are the majority carriers, while the electrons are the minority carriers. A p-type semiconductor is obtained when trivalent atoms, such as aluminium, are doped in silicon atoms.
NCERT Solutions Class 12 Physics – Download PDF
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