Introduction to Electrodynamics · Problem 10.11

Potentials and Fields — David J. Griffiths

Physics · retarded-potentials-wire

Problem

(a) Suppose the wire in Ex. 10.2 carries a linearly increasing current

I(t) = kt,

for

t > 0

. Find the electric and magnetic fields generated. (b) Do the same for the case of a sudden burst of current:

I(t) = q_0\delta(t).