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a) Show that the charge in the shielding cloud exactly cancels \(q_T\). Calculate the total charge inside spheres of radii \( \lambda_D/2 , \; \lambda_d\) and \( 5\lambda_D \) | a) Show that the charge in the shielding cloud exactly cancels \(q_T\). Calculate the total charge inside spheres of radii \( \lambda_D/2 , \; \lambda_d\) and \( 5\lambda_D \) | ||
| + | |||
| + | b)Determine the electrostatic interaction energy between the test | ||
| + | charge and the particles in the plasma and the total mean energy | ||
| + | of the plasma particles (assume \( T_e=T_i=T\) ). | ||
Revisão das 16h44min de 19 de fevereiro de 2017
Consider Debye’s potential created by a punctual test charge \(q_T\) that is placed inside an homogeneous plasma.
a) Show that the charge in the shielding cloud exactly cancels \(q_T\). Calculate the total charge inside spheres of radii \( \lambda_D/2 , \; \lambda_d\) and \( 5\lambda_D \)
b)Determine the electrostatic interaction energy between the test charge and the particles in the plasma and the total mean energy of the plasma particles (assume \( T_e=T_i=T\) ).