Question

An electron travels toward the right side of the page at a speed v. There is a magnetic field B directed into the page. In which direction will the magnetic force on the electron be directed.

Answer 1

The magnetic force on an electron traveling to the right with a magnetic field directed into the page will be directed upward on the page, using the opposite direction suggested by the right-hand rule for negatively charged particles.

Step-by-step explanation:

An electron traveling toward the right side of the page in a magnetic field directed into the page will experience a magnetic force due to its charge and motion. According to the right-hand rule, for positive charges, the thumb points in the direction of the charge's velocity (to the right for this question), and fingers point in the direction of the magnetic field (into the page). The palm then points in the direction of the force. However, since an electron has a negative charge, the force will be opposite to the palm's direction. Therefore, the magnetic force on the electron will be directed upward on the page.