Carrier Transport Phenomena
Authored by MICHAEL FKE
Engineering
University
Used 3+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the primary mechanism for carrier motion in a semiconductor under an electric field?
Thermal excitation
Drift
Diffusion
Scattering
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which mechanism involves movement of carriers from high concentration to low concentration?
Injection
Recombination
Diffusion
Drift
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What does mobility (μ) represent in semiconductor physics?
Carrier lifetime
Carrier generation rate
Carrier speed
Ease of carrier movement in electric field
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which unit is used to express carrier mobility?
cm²/V·s
A/cm²
V/cm
S/cm
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the relation between drift current and electric field?
Directly proportional
Inversely proportional
Logarithmic
No relation
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which factor does NOT affect carrier mobility?
Impurity scattering
Lattice temperature
Electric field polarity
Crystal defects
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which law relates diffusion current density to the concentration gradient?
Faraday’s Law
Ohm’s Law
Einstein Relation
Fick’s Law
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