Question
Physics Question on Semiconductor electronics: materials, devices and simple circuits
The electrical conductivity of semiconductors :
A
decreases with temperature
B
increases with temperature
C
remains constant on heating
D
none of the above
Answer
increases with temperature
Explanation
Solution
With the increase in temperature, more number of covalent bonds are broken, resulting large increase in current carrier concentration (i.e. electrons and holes). Due to which the conductivity of semiconductor increases.