Magnetic Field Problem HELP NEEDED

In summary, a proton of mass mp and charge e is in a box that contains an electric field E, and the box is located in Earth's magnetic field B. The proton moves with an initial velocity vertically upward from the surface of Earth. Assume gravity is negligible. On the diagram above, indicate the direction of the electric field inside the box so that there is no change in the trajectory of the proton while it moves upward in the box. Express your answer in terms of the fields and the given quantities. The proton now exits the box through the opening at the top. The magnitude of the acceleration a of the proton just after it leaves the box, in terms of the given quantities and
  • #71
so should i draw the really slow one.
 
Physics news on Phys.org
  • #72
You could draw one for low v (or high B) and one for high v (or low B).

Another way to look at this is r = (m/q)*(v/B). Note the (m/q) or more traditionally (q/m) is constant for very low (non-relativistic) speeds.
 
  • #73
Thank You So Much!
 

Similar threads

  • Introductory Physics Homework Help
Replies
16
Views
320
  • Introductory Physics Homework Help
Replies
5
Views
1K
  • Introductory Physics Homework Help
Replies
1
Views
577
  • Introductory Physics Homework Help
Replies
1
Views
199
  • Introductory Physics Homework Help
Replies
11
Views
1K
  • Introductory Physics Homework Help
Replies
5
Views
847
  • Introductory Physics Homework Help
2
Replies
40
Views
713
  • Introductory Physics Homework Help
Replies
25
Views
162
  • Introductory Physics Homework Help
Replies
2
Views
1K
  • Introductory Physics Homework Help
Replies
3
Views
953
Back
Top