Physics - Current Electricity Question with Solution | TestHub
PhysicsCurrent ElectricityMicroscopicEasy2 minPYQ_2020
PhysicsEasysingle choice
An electric field is applied to a semiconductor. Let the number of charge carries beand the average drift speed be. If the temperature is increased, then
Options:
Answer:
B
Solution:
As the temperature is increased, more electrons are able to move from valance band to conduction band, hence the number of charge carriers increases but with increase in the temperature the frequency of collisions increases so the average drift speed decreases
Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:Current ElectricitySubtopic:Microscopic
⏱ 2mℹ️ Source: PYQ_2020
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