Question

2.
A positive charge moving with a constant velocity v enters a region of a uniform magnetic field pointing
out the page. What is the direction of the magnetic force on the charge?

A) Left
B) Right
C) To the bottom of the page
D) To the top of the page
E) There is no magnetic force on the current
​

Answer 1

Answer:

to the bottom of the pages

Answer 2

The direction of the magnetic force on the charge is To the bottom of the page. (Option C)

The magnetic force on a free moving charge is perpendicular to both the velocity of the charge and the magnetic field and the direction of the magnetic force is given by the right-hand rule.

Right-Hand Thumb rule states that if we stretch our forefinger, middle finger, and the thumb such that they are perpendicular to each other then the forefinger gives the direction of the magnetic field and the center finger gives the direction of current and the thumb gives the direction of motion.