Question
Physics Question on Semiconductor electronics: materials, devices and simple circuits
A positive hole in a semiconductor is
A
An anti-particle of electron
B
A vacancy created when an electron leaves a covalent bond
C
Absence of free electrons
D
An artificially created particle
Answer
A vacancy created when an electron leaves a covalent bond
Explanation
Solution
A positive hole in a semiconductor is a vacancy which is created at the site of a covalent bond when an electron leaves a covalent bond.