ECE 244 Exam II Symbols (UPDATED)

Xe

Electric Susceptibility

ε=ε₀(1+Xe)

Dielectric permittivity

ε_r=1+Xe

Relative permittivity equation

X_m

Magnetic susceptibility

μ

electron mobility

μ_r =μ₀(1+X_m)

Relative permeability equation

ρ=1/σ

Electrical resistivity

n

Volume density of mobile electrons within the resistor

v

Drift velocity

ΔA

Uncertainty of event A

H(r)

magnetic field

J(r)

current density

B(r)

magnetic flux density

A(r)

vector magnetic potential

p_v(r)

volume charge density

D(r)

electric flux density

V(r)

Electrostatic potential

U(r)

potenital energy

I

current

Q_v

charge enclosed

q

point charge

v

velocity

ε_r

Relative permittivity

B

Magnetic Flux Density

μ_r

relative permeability

B_r

Residual Magnetization

σ

electrical conductivity

J

current density

ρ

electrical resistivity

u_x

average velocity of charge

λ

wavelength

h

Planck’s Constant

Ψ

wavefunction/state function

Hamiltonian Operator

reduced Planck’s Constant

U

potential energy of a particle

<A>

expected value of A

w

frequency

k

wavenumber/”quantum number”