An electron experiences the greatest force as it travels 1.7 ✕ 106 m/s in a magn

Physics
Tutor: None Selected Time limit: 1 Day

An electron experiences the greatest force as it travels 1.7 ✕ 106 m/s in a magnetic field when it is moving southward. The force is upward and of magnitude 2.5 ✕ 10-12 N. What are the magnitude and direction of the magnetic field?


May 26th, 2015

F = qv X B. (Lorentz's law, ref.) The cross product means that when viewed in the direction of F, the direction of the smaller-angle rotation of +qv into +B is clockwise. Note for an electron, q = -1.6022E-19 C. This means qv is negative southward, +qv is northward and thus +B points westward. At the maximum point, F = qvB ==>
B = F/(qv) T.

references

http://hyperphysics.phy-astr.gsu.edu/hbase/magnetic/forchg.html#c1
May 26th, 2015

Studypool's Notebank makes it easy to buy and sell old notes, study guides, reviews, etc.
Click to visit
The Notebank
...
May 26th, 2015
...
May 26th, 2015
Feb 24th, 2017
check_circle
Mark as Final Answer
check_circle
Unmark as Final Answer
check_circle
Final Answer

Secure Information

Content will be erased after question is completed.

check_circle
Final Answer