Greek Alphabet and Its Engineering Uses
Name |
UPPER CASE |
lower case |
Engineering Usage Definition |
Alpha |
Α |
α |
Absorption factor, angles, angular acceleration, attenuation constant, common-base current-amplification factor, deviation of state parameter, temperature coefficient of resistance, thermal expansion coefficient, thermal diffusivity |
Beta |
Β |
β |
Angles, common-emitter current amplification factor, flux density, phase constant, wavelength constant |
Gamma |
Γ |
γ |
Electrical conductivity, Grueneisen parameter |
Delta |
Δ |
δ |
Angles, damping coefficient (decay constant), decrement, increment, secondary emission ratio |
Epsilon |
Ε |
ε |
Capacitivity, dielectric coefficient, electric field intensity, electron energy, emissivity, permittivity, base of natural logarithms (2.7128) |
Zeta |
Ζ |
ζ |
Coefficients, coordinates, impedance |
Eta |
Η |
η |
Chemical potential, dielectric susceptibility (intrinsic capacitance), efficiency, hysteresis, intrinsic impedance of a medium, intrinsic standoff ratio |
Theta |
Θ |
θ |
Angle of rotation, angles, angular phase displacement, reluctance, thermal resistance, transit angle |
Iota |
Ι |
ι |
Inertia |
Kappa |
Κ |
κ |
Coupling coefficient, susceptibility |
Lambda |
Λ |
λ |
Line density of charge, permanence, photo-sensitivity , wavelength |
Mu |
Μ |
μ |
Amplification factor, magnetic permeability, micron, mobility, permeability, prefix micro |
Nu |
Ν |
ν |
Reflectivity |
Xi |
Ξ |
ξ |
Output coefficient |
Omicron |
Ο |
ο |
|
Pi |
Π |
π |
Peltier coefficient, ratio of circumference to diameter (3.1416) |
Rho |
Ρ |
ρ |
Reflection coefficient, reflection factor, resistivity, volume density of electric charge |
Sigma |
Σ |
σ |
Conductivity, Stefan-Boltzmann constant, summation, surface density of charge |
Tau |
Τ |
τ |
Period, propagation constant, Thomson coefficient, time constant, time-phase displacement, transmission factor |
Upsilon |
Υ |
υ |
Admittance |
Phi |
Φ |
φ |
Angles, coefficient of performance, contact potential, magnetic flux, phase angle, phase displacement, radiant flux |
Chi |
Χ |
χ |
Angles |
Psi |
Ψ |
ψ |
Angles, dielectric flux, displacement flux, phase difference |
Omega |
Ω |
ω |
Angular frequency, angular velocity, Ohms, resistance, solid angle |