On heating a semiconductor:

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) When the temperature of a semiconductor increases,the thermal energy causes more covalent bonds to break,leading to an increase in the number of f

Vedclass · Accepted Answer

mobility decreases,resistivity decreases

Vedclass · Answer

(A) When the temperature of a semiconductor increases,the thermal energy causes more covalent bonds to break,leading to an increase in the number of free charge carriers (electrons and holes). This increase in charge carriers significantly increases the conductivity,which corresponds to a decrease in resistivity. However,the increased thermal vibrations of the lattice atoms lead to more frequent collisions,which causes the mobility of the charge carriers to decrease.

Similar Questions

Which is the correct relation for the forbidden energy gap in a conductor,semiconductor,and insulator?

Regarding a semiconductor,which one of the following is wrong?

When the electrical conductivity of a semiconductor is due to the breaking of its covalent bonds,then the semiconductor is said to be

The band diagrams for three different semiconductors are shown in the figure below. Starting from the left to the right,identify the types of semiconductors they represent.

The expected energy of the electrons at absolute zero is called

Vedclass Test Series

Exam Paper Generator

Online Exam Module