A theoretical checking for resistive instabilities into the plasma: one proposed criterion for identification of the plasma waves

As the resistive instabilities with their serious difficulty at the thermonuclear fusion programs have concentrated much interest of the researchers, the present study has the ambition to provide an applicable and useful criterion for examining and identifying if a observed plasma wave is resistive or not. A dispersion relation is obtained, by using the two fluids equation and considering that a resistive force exists, and then the growth rate can be solved. Subsequently, the resistance factor is calculated using the experimental values and data obtained. Finally, a comparison of the calculated resistance factor with the ones published in bibliography will be performed, which gives the expected answer about the type of the examined wave.