Recent content by DavidL070949

Talk about serendipity... Sometime last night, I woke up and had the insight that I was making my life a lot harder than it needed to be. Maybe instead of substituting the equations for the E and B fields into the expression for the generating field F I should contract that field as defined in...

All of this is very helpful indeed! I'm going to try to work through the details on my own, so that I make sure I really understand and learn from the problem and its solution. And you're right about the metric to use. It's the same one that the MIT course uses. What a great resource PF is!!!

Apologies for the delay, but I'm still getting used to LaTex. Anyway, in answer to how I got to the expression(s) that left me stuck: I subtituted the formulas for the E and B 4-vectors into the expression for the field in terms of those objects and ended up with three terms. Here they are...

And, got it no more attachments. To the very helpful person who asked me to post my work, I'm working on learning enough about LaTex to do that properly. That may take a bit, but I wanted to thank you in advance for the prompt offer to help.

Thanks. Next task is definitely to figure out how to use LaTeX.

Hi! Apologies in advance for a somewhat long post. First, by some background: Long ago in what seems like a galaxy far away, I got a Ph.D. in physics (statistical physics) before switching gears and going into law. The nature of my grad school was such that there wasn't any coursework - you...

Hi. Just joined. Looks like a fun and helpful forum.