Question

In a semi-conducting material the mobilities of electrons and holes are ${\mu }_e$ and ${\mu }_h$ respectively. Which of the following is true?

• A. ${\mu }_e>{\mu }_h$
• B. ${\mu }_e<{\mu }_h$
• C. ${\mu }_e={\mu }_h$
• D. ${\mu }_e=0;{\mu }_h>0$

Answer 1

The correct option is A ${\mu }_e>{\mu }_h$

Mobility of electron is more than that of holes.