Magnetic FieldElectricity and Magnetism Level 3
A fixed thin long wire carries a current \(I_0\). A small particle of mass \(m\) and charge \(q\) is at rest at a distance of \(x_0\) from the wire. The particle is now projected with a velocity \(v_0\) towards the wire and perpendicular to it. Find the minimum separation between the particle and the wire.