I'm trying to program an application to simulate various readings of electromagnetic fields from any type of appliance or energy source. This part of physics was always my weakest. I don't remember any equations to use to get this data. The only thing I can remember is that it is related to the Inverse Square Law of some sorts. I've did many searches online, but I've seen so many different equations used, and I've tested several of them with inconclusive results. I don't know which to go by. (I've seen some posts on here too, but I can't make sense of them. Not sure if those particular equations were what I needed) Thanks in advance for any help you can give.