Question

An electron traveling north enters a region where the electric field is uniform and points North.

Answer 1

Subatomic particles with an elementary charge of -1 are known as electrons. The charge held by an electron is the same as the charge held by a proton (but has an opposite sign). As a result, electrically neutral atoms/molecules must have the same number of protons and electrons. Although the magnitude of the charges possessed by protons and electrons are the same, an electron's size and mass are significantly less than a proton's (an electron's mass is about 1/1836 that of a proton).

Complete answer:
The magnetic impact on moving electric charges, electric currents, and magnetic materials is described by a magnetic field, which is a vector field. In a magnetic field, a moving charge experiences a force that is perpendicular to both its own velocity and the magnetic field. Furthermore, a varying magnetic field exerts a force on a variety of non-magnetic materials by altering the mobility of their outer atomic electrons. Electric currents, such as those employed in electromagnets, and electric fields that change in time generate magnetic fields that surround magnetised objects.
The velocity of charged particles is influenced by both electric and magnetic forces. The ensuing shift in particle trajectory will, however, differ significantly between the two forces. We'll go over the two forms of force and compare and contrast their effects on a charged particle in the sections below. The angle between the velocity vector and the magnetic field vector B determines the force a charged particle “feels” as a result of a magnetic field. Remember that the magnetic force is equal to:
${\text{F}} = {\text{qvBsin}}\theta$
When the magnetic field and velocity are parallel (or antiparallel), sin = 0, and no force exists. In this example, even in the presence of a strong magnetic field, a charged particle can continue to move in a straight path. The component of v parallel to B remains constant if it is between 0 and 90 degrees.
To conclude
We know that an electron is negatively charged, and that force always opposes the electric field's direction. As a result, when the force operates in the direction of the South and opposes the velocity, the electron slows down.

Note:
Magnetic fields are produced by all moving charged particles. Moving point charges, such as electrons, generate complex but well-known magnetic fields that are influenced by the charge, velocity, and acceleration of the particles. Around a cylindrical current-carrying conductor, such as a length of wire, magnetic field lines develop in concentric rings. The "right-hand grasp rule" can be used to determine the direction of such a magnetic field. The magnetic field's intensity diminishes as you get further away from the wire. (The strength of an infinite length wire is inversely proportional to the distance.)