I am quite new to the software COMSOL. I found that by using this software I can get the distribution of Electric field lines with the the certain medium in the cell. This will also give the idea about the DEP force and Brownian motion using some hydrodynamic or electro-osmotic combined study. I don't know much about it and i don't have any idea. So please suggest me how to use this software from the basics and is there any alternative or other software by which i can do my job. If possible send me some pictorial manual or suggest me some helpful link.