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Consider Debye’s potential created by a punctual test charge qT that
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Consider Debye’s potential created by a punctual test charge \(q_T\) that
 
is placed inside an homogeneous plasma.
 
is placed inside an homogeneous plasma.
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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 \( 5\lambda_D \)
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b)Determine the electrostatic interaction energy between the test
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charge and the particles in the plasma and the total mean energy
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of the plasma particles (assume \( T_e=T_i=T\) ).
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<div class="toccolours mw-collapsible mw-collapsed" style="width:210px">
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'''Answer'''
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<div class="mw-collapsible-content">
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(a)
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(b)
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</div>

Edição atual desde as 16h23min de 26 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 \( T_e=T_i=T\) ).

Answer

(a)

(b)