Non-stationary electrical charging of a conductive body in the medium with the ionic component at instantaneous loss by a body an electrical link with earthed object

Theoretical and numerical research of electric charging of conducting body in the environment with ionic component at instant loss by a body of electric contact to the earthed object is carried out. Two situations are considered: the first, stationary situation which is realized when the electric current, coming on a body, through contact leaves on the earth. The second, non-stationary situation, arises when contact of a body to the earthed object disappears, and on a body the electric charge starts to grow. On the basis of electro-dynamic equations the general statement of a problem is given. Numerical modelling is executed.