An electron is projected in a uniform magnetic field along the direction of field, the electron will experience:

Concept:

• When an electron is projected in a uniform magnetic field along the direction of the field lines, the electron will experience a force perpendicular to both its velocity and the magnetic field direction, known as the Lorentz force.
• The direction of the Lorentz force can be determined using the "right-hand rule."

Right-hand rule:

• Point your right thumb in the direction of the electron's velocity, point your fingers in the direction of the magnetic field, and the direction in which your palm faces gives you the direction of the force experienced by the electron.
• Since the velocity and magnetic field are both along the same direction, the angle between them is 0 degrees. Therefore, the force experienced by the electron will be zero, and the electron will continue to move along its original path without any deviation

The correct answer is option (3).