Question

Which of the following parameter describes the best movement of the electrons inside a semiconductor?

(a) Velocity gradient

(b) Diffusion

(c) Mobility

(d) Density gradient

I have been asked this question in homework.

My doubt stems from Diffusion topic in division Conduction in Semiconductors of Electronic Devices & Circuits

Answer 1

The correct answer is (c) Mobility

To elaborate: Mobility is defined as the movement of the electrons inside a semiconductor. On the other hand, velocity gradient is the ratio of velocity to distance.