- #1
AriAstronomer
- 48
- 1
Hey everyone,
Just a quick question about a few electrodynamic concepts:
1) retarded time: t = t_r - (curly)r/c. Is t = total time, t_r = time elspased since the electromagnetic 'news' reached the point in question, and r/c = time taken to reach the point in question?
2) I'm a bit confused about w(t_r), the retarded position. Is this the position of a particle when some electromagnetic 'news' first reached it, and is now currently at a different position? How does it differ from w(t)?
Thanks.
Ari
Just a quick question about a few electrodynamic concepts:
1) retarded time: t = t_r - (curly)r/c. Is t = total time, t_r = time elspased since the electromagnetic 'news' reached the point in question, and r/c = time taken to reach the point in question?
2) I'm a bit confused about w(t_r), the retarded position. Is this the position of a particle when some electromagnetic 'news' first reached it, and is now currently at a different position? How does it differ from w(t)?
Thanks.
Ari