Question

A proton traveling to the right enters a region of uniform magnetic field that points into the page.When the proton enters this region, it will be ____(A) deflected out of the plane of page.(B) deflected into the plane of page.(C) deflected toward the top of the page.(D) deflected toward the bottom of the page.(E) unaffected in its direction of motion.

Answer 1

Answer:

(C) deflected toward the top of the page.(

Explanation:

We can answer this problem by using Fleming's Left Hand Rule. By doing so, we have to place:

- The index finger of the left hand in the direction of the magnetic field

- The middle finger of the left hand in the direction of the particle's velocity

- The thumb will give the direction of the force, and therefore the deflection of the proton

In this problem, we have:

- Magnetic field direction: into the page --> index finger

- Proton's velocity: to the right --> middle finger

By doing so, we observe that the thumb points towards the top of the page: therefore, the correct answer is

(C) deflected toward the top of the page.