抄録
The present paper is concerned with the problem of the self-exciting process in magneto-hydrodynamics studied in a previous paper (referred to as Paper I). In §2 and §3, by solving a differential equation numerically, the results in Paper I are checked in a conclusive way. The existence of a self-exciting dynamo having thus been shown, the detailed structure of this dynamo is studied in §4 and §5. In §6, a new approximate method of solving the problem is proposed and applied to the problem in Paper I. This method of approximation is found to be fairly useful. By using this method, it is shown in §7 that the self-exciting dynamo is possible by the fluid motions of considerable varieties. The orders of magnitudes of the fluid velocities required are found to be the same as that in Paper I.