In the previous chapter we analyzed the characteristics of wave propagation in a cold plasma. Now we will extend the theory already developed to include the pressure gradient term in the momentum equation. We shall consider wave propagation in a warm electron gas (neglecting ion motion) and, also, in a fully ionized warm plasma (considering electrons and only one type of ions), in the absence as well as in the presence of an externally applied magnetic field.
KeywordsLongitudinal Wave Dispersion Relation Phase Velocity Plasma Wave Cold Plasma
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