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Magnetic field question!

  • Thread starter ursulan
  • Start date
  • #1
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Homework Statement


An antiproton (same properties as a proton except that q=-e) is moving in the combined electric and magnetic fields of the figure

The antiproton is moving to the right with a velocity of 500m/s the magnetic field B=2.5T is coming into the page and E=1000V/m downward.

What is the magnitude of the antiproton's acceleration at this instant?

Homework Equations



F=ma, F=qvB

The Attempt at a Solution



The answer is 2.4x10^10m/s^2. I bascially went ma=qvB which didn't work. I'm not sure why it shows E.
 

Answers and Replies

  • #2
LowlyPion
Homework Helper
3,090
4

Homework Statement


An antiproton (same properties as a proton except that q=-e) is moving in the combined electric and magnetic fields of the figure

The antiproton is moving to the right with a velocity of 500m/s the magnetic field B=2.5T is coming into the page and E=1000V/m downward.

What is the magnitude of the antiproton's acceleration at this instant?

Homework Equations



F=ma, F=qvB

The Attempt at a Solution



The answer is 2.4x10^10m/s^2. I bascially went ma=qvB which didn't work. I'm not sure why it shows E.
Maybe this will help?
http://hyperphysics.phy-astr.gsu.edu/hbase/magnetic/magfor.html#c2
 

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