Abstract

Abstract By means of the equivalent reduced electric field concept, calculation of the electron transverse and perpendicular drift velocity and their ratio, tan θ, is extended to a moderate and a strong crossed magnetic field for nitrogen, oxygen and air, for average electron energies, from 0-1 to 10 ev. Data are presented on a constant electron energy rather than constant E/p basis. It is shown numerically that the prior assumed constant electron collision frequency values, derived from the various transport coefficients, inherently vary widely (by about a factor of 2(. Even for a given transport coefficient and constant electron energy, the collision frequency changes with applied magnetic field ( also by a factor of 2). The advantage of carrying out experiments at constant electron energy in the presence of a crossed magnetic field is discussed.

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