STANDARDPhysics-Semiconductors
STANDARD Physics Mobility of Charge Carriers MCQ Question
Type: MCQ-conceptual-Medium
In a semiconducting material the mobilities of electrons and holes are μₑ and μₕ respectively. Which of the following is true
A
μₑ > μₕ
B
μₑ < μₕ
C
μₑ = μₕ
D
μₑ < 0 ; μₕ > 0
Correct Answer
Option A
Detailed Explanation
μₑ > μₕ because electron is lighter than hole.
Found an issue with this question?
Related Questions
More from Semiconductors
A transistor is a current operating device because the action of transistor is controlled by the charge carriers. Base current is very much larger tha...
2019Physics
A pure semiconductor has equal electron and hole concentration of 10¹⁶ m⁻³. Doping by gallium increases nₕ to 5×10²² m⁻³. Then, the value of nₑ in the...
2019Physics
A semiconductor has an electron concentration of 8×10¹³ per cm³ and a hole concentration of 5×10¹² per cm³. The electron mobility is 25000 cm²V⁻¹s⁻¹ a...
2017Physics