Which are the types of carrier movements and how are they activated

Drift - As a result of an electric field

Diffusion - As a result of a carrier gradient, by other words a difference in the carrier level from one side to the other, usually when we have a p-n junction

JA

Related Physics A Level answers

All answers ▸

Assuming the Earth is a perfect sphere of radius R. By how much would your mass (m), as given by a scale, change if you measured it on the north pole and on the equator?


Find the angle at which total internal refraction takes place when light is going from glass to air.


A particle of mass 5kg is moving in circular motion with a time period of 2 seconds. The radius of the circle is 10m. What is the centripetal force on the particle


How does the photoelectric effect provide evidence for a particulate nature of electromagnetic radiation?