In the equatorial plane along the east-west direction to place a straight wire, through the west to east current, then this wire by the geomagnetic field action direction is what direction

In the equatorial plane along the east-west direction to place a straight wire, through the west to east current, then this wire by the geomagnetic field action direction is what direction

Vertical upward, left-handed rule. Magnetic field direction from south to North!

The motion of charged particles in uniform magnetic field must be affected by Lorentz force, right? The motion of electrified wire in uniform magnetic field must be affected by Ampere force, right
RT

No, it depends on the direction of motion. If the direction of motion is parallel to the uniform magnetic field, there is no force

In a uniform magnetic field, an electrified straight wire is folded into a right angle from the middle point, and the ampere force is the original √ 2-2,

The length used to be l, now it's √ 2 / 2L

Why is conducting wire parallel to magnetic field free from ampere force?
Please explain in detail~~~~~~~~

The ampere force on an electrified wire is essentially the sum of Lorentz force on the moving charges inside the wire. When the wire is parallel to the magnetic field, the moving direction of the moving charges inside the wire is parallel to the magnetic field, and the charges are not subject to Lorentz force