Question

find electric field and electric potential due to positive charges distributed at a surface of the sphere of the copper atom

Answer 1

Answer:

Given that, a sphere of the copper atom has a positive charge on its surface.

In gerenal, copper has a +2 positive charge in its ionic form.i.e., Cu⁺². Assuing that, the spherical copper atom is a hollow charged sphere having a positive charge Q on its surface.

Using Gauss's law in electrostatic,

where, E is the electric field and ds is the area element. Here we have to assume, spherical gussian surface of radius r and its value is 4r²

Thus, E (4r²) = Q/₀

or E = Q/4₀r²

Therefore, the electric field E at a distance r due to the positive charged of the spherical copper atom is

E(r) = (1/4₀) (Q/r²), where Q = 2+

The electric potential due to the same charged spherical copper atom is

, where Q = 2+