3.5 Analogue to the Electrical Properties

Electrical force is given as

	(3.30)

where φ is potential, E is the electric field, Z_i is the atomic number, e is the electronic charge and Z_ie is the total charge on the particle.

Using the above relations, one can write the flux, J_i , as

Now, since J_i = c_i .v_i , the velocity can be written as

	(3.32)

So, defining electrical mobility, μ_i as velocity per unit electric field

	(3.33)