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 ▸Describe how a capacitor works.
Calculate the resistance of a uniform wire of diameter 0.5mm, length 2m and resistivity 1.7x10^-8Ωm.
Using Newton's law of universal gravitation, show that T^2 is proportional to r^3 (where T is the orbital period of a planet around a star, and r is the distance between them).
A student heats a bar of chocolate in the microwave for one minute. When they remove the bar they observe that there are patches of melted chocolate with unmelted chocolate between them. Suggest the mechanism of how this happens.