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 ▸Explain the forces involved in a pendulum set up.
The tip of each prong of a tuning fork emitting a note of 320Hz vibrates in SHM with an amplitude of 0.50mm. What is the speed of each tip when its displacement is zero?
An atom can become excited by the absorption of photons. Explain why only photons of certain frequencies cause excitation in a particular atom.
Two electrons are a distance r apart, the first electron exerts a force F on the second electron. a) What force does the second electron exert on the first? b) In terms of r, at what distance is the force that the first electron exerts on the second F/9?