Qualitative estimation of kinetic energy components of longitudinal continuous motion of magnetized nonrelativistic electrons within the landau level

In the framework of the quantum statistical physics it was shown that direct subtraction of the electron interaction energy in a magnetic field from the kinetic energy or its addition to the latter in the strength function contradicts to the well-known fact according to which the magnetic field does no positive work over a charged particle. Byelorussian State University, Brest State University. Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 6, pp. 31–35, June, 2000.