Diferenças entre edições de "Debye shield /spherical conductor"

Revisão das 20h44min de 2 de março de 2017

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(F. F. Chen $\sim$ 1.10) A spherical conductor of radius $R$ is immersed in a plasma and charged to a potential $\phi_0$ . The electrons remain Maxwellian and move to form a Debye shield, but the ions are stationary during the time frame of the experiment. Assuming $e\phi_0\ll k T_e$ :

(a) derive an expression for the potential as a function of \(r$;

(b) calculate the charge in the sphere;

(c) calculate the sphere capacity for $R=10$ cm, $T_e=1$ keV and $n_0=10^{14}$ and $10^6$ cm $^{-3}$ , and show that for high electron densities the plasma behaves as a dielectric.

Diferenças entre edições de "Debye shield /spherical conductor"

Revisão das 20h44min de 2 de março de 2017

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@@ Linha 20: / Linha 20: @@
 of the experiment. Assuming  $e\phi_0\ll k T_e$ :
+(a) derive an expression for the potential as a function of \(r$;
-(a)derive an expression for the potential as a function of \(r$;
 (b) calculate the charge in the sphere;
-(c)calculate the sphere capacity for  $R=10$  cm,  $T_e=1$  keV and  $n_0=10^{14}$  and  $10^6$  cm $^{-3}$ , and show that for
+(c) calculate the sphere capacity for  $R=10$  cm,  $T_e=1$  keV and  $n_0=10^{14}$  and  $10^6$  cm $^{-3}$ , and show that for
 high electron densities the plasma behaves as a dielectric.