Although the concepts of "dark matter and dark energy" are firmly established in cosmology, physicists do not see any reason to correct on this basis the fundamental theory of electrodynamics and give a new assessment the efficiency of such high-tech vacuum installations, as the tokamaks, the particle accelerators and colliders. In my article, I propose to remove this omission. The modernization of equations of electrodynamics is based on postulating an additional scalar magnetic field in to the presence of dark matter that explains the existence of the fifth interaction. A scalar magnetic field generates a longitudinal force different from the transverse Lorentz forces (the fifth force) and affects the state of the plasma in allvacuum installations.