magnetostatics

[amrix]

one of the following is not a source of magneto static fields:

a.a dc current in a wire

b.a charged disk rotating at uniform speed

c.an accelerated charge

since i don't have a clear idea of what an accelerated charge is i am confused what the answer might be......it would be kind of some one could help me out with it, in explaining what an accelerated charge is????

[timo]

a charged object that accelerates, i.e. has an acceleration [math]\vec a \neq 0[/math], of course.