Several classes of self‐consistent equilibria are examined with a view toward establishing their general character. It is found that within the context of self‐consistent equilibria current limitation in the sense of Alfvén and Lawson is not present per se. Practical considerations, however, would argue that this limit has rather broad validity in the strictly relativistic regime providing externally generated magnetic fields are absent. An example of potential practical interest in which field reversal occurs inside the beam while the bulk of it remains nearly force‐free is discussed in some detail.

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