- A quasiperpendicular shock is considered as a structure evolved from a fast magnetosonic nonlinear wave. Due to the steepening and tendency towards overturning the scales become smaller and the ramp is an intermediate whistler. The noncoplanar magnetic field component in the ramp appears in a quite natural way. The ramp is characterized by a large peak of the potential electric field, its width is much smaller than the ramp width. It is shown that in such a case electrons are heated efficiently. Ions are heated also; the heating process is closely related to the shock drift acceleration.