The derivative of this quantitywith respect to wavevector is the group velocity, and dispersion relations give this quantity as a function of wavevector.
The inductive heating power generated by eddy currents is directly proportional to the product of the magnetic permeabilityand this quantity, and in the skin effect which gives rise to those eddy currents, the penetration depth is inversely proportionalto the square root of the product of the permeability, resistivity, and this quantity. The Kramers-Kronig relationsexpress the real and imaginary parts of the dielectric function as a function of this quantity. The derivative of this quantitywith respect to wavevector is the group velocity, and dispersion relations give this quantity as a function of wavevector. AnRLC circuit resonates when this value for a driving EMF is equal to one over the square root of the product of capacitanceand inductance. Below a critical value of this quantity, wave propagation does not occur in plasmas or in waveguides. For 10points, identify this quantity measured in inverse-seconds, or Hertz.
The inductive heating power generated by eddy currents is directly proportional to the product of the magnetic permeabilityand this quantity, and in the skin effect which gives rise to those eddy currents, the penetration depth is inversely proportionalto the square root of the product of the permeability, resistivity, and this quantity.
frequency [accept angular frequency, which is just frequency times 2 pi]