Compute lp and n, for the following cases: (a) a glow discharge, with n = 1010 cm-3, kt, = 2 ev. (b) the earth's ionosphere, with n= 106 cm-3, kt, = 0.1 ev. (c) a 6-pinch, with n=1017 cm-3, t. = 800 ev.

(a)

N =

(b)

N' =

(c)

N'' =

Solution:

As per the question, we have to calculate the Debye, length and N for the given cases.

Also, we utilize the two relations:

1.

2. N =

Now,

(a) n =

KT = 2 eV

Then

(Since,

e =

)

Thus

Now,

N =

(b) n =

KT = 0.1 eV

Then

N' =

(c) n =

KT = 800 eV

N'' =

gravity

explanation: