Question

proof and it's application to find fields due to initially long stright wire and uniformly charge thin spherical shell.
(field inside or outside.)

electric charge and field. chapter... ​

Answer 1

Diffusion is the net movement of anything from a region of higher concentration to a region of lower concentration. Diffusion is driven by a gradient in concentration. The concept of diffusion is widely used in many fields, including physics, chemistry, biology, sociology, economics, and finance.

Thanks for the help