Abstract
In the work, the classical concept of symmetry limited to geometric objects (figures, solids), which originated from ancient Greece, has been extended to allow for symmetry studies in other types of objects. By introducing concepts of limit point groups and kinematic elements, which characterize a studied object, it was determined what types of symmetries an electric field and a magnetic field exhibit. It was established that, in order for a phenomenon to occur, a characteristic symmetry of a medium must be consistent with the characteristic symmetry of the phenomenon occurring in it. It was also determined that elements of symmetry of causes must be reflected in the symmetry of the induced effects.
