In a semiconducting material the mobilities of electrons and holes are μe and μh respectively. Which of the following its true?

Question

In a semiconducting material the mobilities of electrons and holes are μe and μh respectively. Which of the following its true? (A) μe > μh (B) μe < μh (C) μe = μh (D) μe < 0; μh > 0

Tardigrade Admin · Accepted Answer

Hole is massive than electron, thus, mobility of holes is less than that of electrons, that is μh < μe or μe > μh

Q. In a semiconducting material the mobilities of electrons and holes are $μ_{e}$ and $μ_{h}$ respectively. Which of the following its true?

$μ_{e} > μ_{h}$

$μ_{e} < μ_{h}$

$μ_{e} = μ_{h}$

$μ_{e} < 0; μ_{h} > 0$

Hole is massive than electron, thus, mobility of holes is less than that of electrons, that is $μ_{h} < μ_{e}$
or $μ_{e} > μ_{h}$

Q. In a semiconducting material the mobilities of electrons and holes are μe​ and μh​ respectively. Which of the following its true?

μe​>μh​

μe​<μh​

μe​=μh​

μe​<0;μh​>0