Physics - Semiconductors Question with Solution | TestHub
PhysicsSemiconductorsPhysics of semiconductorMedium2 minQB
PhysicsMediumsingle choice
If and are the electron density and drift velocity in a semiconductor, when temperature is increased (at constant electric field, in the usual mobility-decreasing regime):
Options:
Answer:
A
Solution:
Heating increases free-electron concentration.
At fixed electric field in the usual temperature regime:
Mobility falls, so drift velocity decreases. Hence A.
Stream:JEESubject:PhysicsTopic:SemiconductorsSubtopic:Physics of semiconductor
⏱ 2mℹ️ Source: QB
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