ECEN 370 - EXAM 1 questions and
answers rated A+
Particle Model of Electron - correct answer ✔✔ describes properties and behavior of electrons
as point like charges with mass. Moves in straight lines (classical mechanics)
Wave model of Electron - correct answer ✔✔ Uses a wave function to describe electrons in
frequency, and wavelength. Can be used to find probability of electron within a length.
(quantum mechanics)
Hall effect - correct answer ✔✔ The Hall effect is a phenomenon in which a voltage difference
(known as the Hall voltage) is generated across a conductor when it is placed in a magnetic field
that is perpendicular to the direction of the electric current flowing through it.
Mean free time (t) - correct answer ✔✔ Free moving time between two collisions
mean free path - correct answer ✔✔ Free moving distance between two collisions
drift velocity - correct answer ✔✔ the net velocity of a charge carrier moving in an electric field
Drift Mobility - correct answer ✔✔ ability of charge carriers to move through a material
Lorentz force - correct answer ✔✔ vector cross product that describes the force on a charged
particle moving through and electromagnetic field.
Heisenberg uncertainty principle - correct answer ✔✔ it is impossible to know exactly both the
velocity and the position of a particle at the same time
answers rated A+
Particle Model of Electron - correct answer ✔✔ describes properties and behavior of electrons
as point like charges with mass. Moves in straight lines (classical mechanics)
Wave model of Electron - correct answer ✔✔ Uses a wave function to describe electrons in
frequency, and wavelength. Can be used to find probability of electron within a length.
(quantum mechanics)
Hall effect - correct answer ✔✔ The Hall effect is a phenomenon in which a voltage difference
(known as the Hall voltage) is generated across a conductor when it is placed in a magnetic field
that is perpendicular to the direction of the electric current flowing through it.
Mean free time (t) - correct answer ✔✔ Free moving time between two collisions
mean free path - correct answer ✔✔ Free moving distance between two collisions
drift velocity - correct answer ✔✔ the net velocity of a charge carrier moving in an electric field
Drift Mobility - correct answer ✔✔ ability of charge carriers to move through a material
Lorentz force - correct answer ✔✔ vector cross product that describes the force on a charged
particle moving through and electromagnetic field.
Heisenberg uncertainty principle - correct answer ✔✔ it is impossible to know exactly both the
velocity and the position of a particle at the same time
