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

Chapter 10, Problem 11P

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Problem 11P

(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 ) = q0δ(t).

Reference example 10.2

An infinite straight wire carries the current

That is, a constant current I0 is turned on abruptly at t = 0. Find the resulting electric and magnetic fields.