Answer:
deflected toward top of the screen
Explanation:
We can find the direction of the force acting on the proton by using the right-hand rule. In fact, we have:
- Index finger: direction of motion of the proton --> to the right
- Middle finger: direction of the magnetic field --> into the screen
- Thumb: it gives the direction of the force --> therefore, it will be upward
And since the charge is positive (it is a proton), we don't have to revers the direction: so, the force on the proton points upward.
Therefore, the correct answer will be
deflected toward top of the screen
