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(F. F. Chen ~ 1.3) On a log-log plot of \(n\) [\(m^{-3}\)] vs kTe (eV) draw lines
 
(F. F. Chen ~ 1.3) On a log-log plot of \(n\) [\(m^{-3}\)] vs kTe (eV) draw lines
of constant \(\lambda_D\) and \(\Delta\). On the graph place the following points:  
+
of constant \(\lambda_D\) and \(\Lambda\). On the graph place the following points:  
  
 
a) Tokamak (\(T_{e}\) \(\simeq\) 1 keV, \( n_e\simeq10^{13} \, cm^{-3} \))
 
a) Tokamak (\(T_{e}\) \(\simeq\) 1 keV, \( n_e\simeq10^{13} \, cm^{-3} \))
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b) Solar wind near the Earth ( \( T_e \simeq 10 eV, n_e\simeq10 \, cm^{-3} \) )
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c) Ionosphere, ~ 300 km above Earth’s surface ( \( T_e \simeq0.1eV, \, n_e\simeq 10^6 \, cm^{-3} \))
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d) Laser fusion (\( T_e \simeq 1 \; keV, \, n_e\simeq 10^{20} cm^{-3} \) )
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e) Gaseous electronics (\( T_e \simeq 1 \; eV, \, n_e\simeq 10^{10} cm^{-3} \) )
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f) Interstellar medium (\( T_e \simeq 1 \; eV, \, n_e\simeq 10^{-1} cm^{-3} \) )
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g) Flame (\( T_e \simeq 0.1 \; eV, \, n_e\simeq 10^{8} cm^{-3} \) )
  
 
<div class="toccolours mw-collapsible mw-collapsed" style="width:210px">
 
<div class="toccolours mw-collapsible mw-collapsed" style="width:210px">
 
'''Answer'''
 
'''Answer'''
 
<div class="mw-collapsible-content">
 
<div class="mw-collapsible-content">
(a) \(x \) particles and (b) \(3\) particles
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(a)  
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(b)
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(c)
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(d)
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(e)
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(f)
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(g)
 
</div>
 
</div>
 
</div>
 
</div>

Edição atual desde as 19h36min de 2 de março de 2017

Metadata

  • CONTEXTO : Segundo ciclo universitário
  • AREA: Física
  • DISCIPLINA: Física e Tecnologia dos Plasmas
  • ANO: 4
  • LINGUA: en
  • AUTOR: Vasco Guerra
  • MATERIA PRINCIPAL: Debye shielding and fundamental efects
  • DESCRICAO: Number density
  • DIFICULDADE: *
  • TEMPO MEDIO DE RESOLUCAO: 300 [s]
  • TEMPO MAXIMO DE RESOLUCAO: 600 [s]
  • PALAVRAS CHAVE: plasma density, number density

(F. F. Chen ~ 1.3) On a log-log plot of \(n\) [\(m^{-3}\)] vs kTe (eV) draw lines of constant \(\lambda_D\) and \(\Lambda\). On the graph place the following points:

a) Tokamak (\(T_{e}\) \(\simeq\) 1 keV, \( n_e\simeq10^{13} \, cm^{-3} \))

b) Solar wind near the Earth ( \( T_e \simeq 10 eV, n_e\simeq10 \, cm^{-3} \) )

c) Ionosphere, ~ 300 km above Earth’s surface ( \( T_e \simeq0.1eV, \, n_e\simeq 10^6 \, cm^{-3} \))

d) Laser fusion (\( T_e \simeq 1 \; keV, \, n_e\simeq 10^{20} cm^{-3} \) )

e) Gaseous electronics (\( T_e \simeq 1 \; eV, \, n_e\simeq 10^{10} cm^{-3} \) )

f) Interstellar medium (\( T_e \simeq 1 \; eV, \, n_e\simeq 10^{-1} cm^{-3} \) )

g) Flame (\( T_e \simeq 0.1 \; eV, \, n_e\simeq 10^{8} cm^{-3} \) )

Answer

(a)

(b)

(c)

(d)

(e)

(f)

(g)