Diferenças entre edições de "Debye lenght"
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| Linha 2: | Linha 2: | ||
is placed inside an homogeneous plasma. | 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 , \; \ | + | 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 | b)Determine the electrostatic interaction energy between the test | ||
charge and the particles in the plasma and the total mean energy | charge and the particles in the plasma and the total mean energy | ||
of the plasma particles (assume \( T_e=T_i=T\) ). | of the plasma particles (assume \( T_e=T_i=T\) ). | ||
Revisão das 19h41min de 2 de março 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 \( T_e=T_i=T\) ).