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**Unformatted text preview: **To keep things simple, you may assume (though you dont have to) that the pressure terms in the momentum equations can be ignored. It is also useful to treat the ions and electrons symmetrically and express each n ~ in terms of k.E ~ before plugging into Gauss Law. 10.2 Rederive the electromagnetic wave (transverse E x field) as was done in class by neglecting the ion u xi ~ motion. Having obtained the mode eigenvector and mode frequency by using this approximation, now prove self-consistently that |u xi ~ | << |u xe ~ |, for massive ions....

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