Question

Consider a point charge q moving arbitrar ily along a trajectory described by vector function of time r (t). The velocity of the charge is thus V(t)- di,(t)/dt. Suppose Q and Q'represent points on the trajectory where the charge is at time t and was at an earlier time t'. Let R(t) F r,(t) be the vector from the charge to the fixed point P as shown in the figure of particle re volume element de r" a) Prove the velocity of the charge is equation R(tr) dt c) Determine the retarded potentials V(r, t) and A(r,t) b) Show that the retarded time satisfies the

Answer 1

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