Infinitely charged wire and moving charge

[jiho.j]

Homework Statement

There's a uniform infinite line charge with the charge density λ. A point particle with charge q moves with a velocity v parellel to infinite line. What is force exerted on point particle? What is magnetic field seen in ths moving frame(particle frame)?

Homework Equations

Basic E&M, Maxwell's equations.

The Attempt at a Solution

1) What is difference between "stationary wire & moving charge" and "moving wire & stationary charge" ?
First one will generate electric field and second one will generate magnetic field(current). Am I right?

 

[TSny]

In the frame in which the wire is stationary, the wire will produce only an E field.

In the particle frame, the moving wire will produce both an E field and a B field.