Homework Help: physics

Posted by ashley --- HELP PLEASEE!!! on Saturday, June 4, 2011 at 9:55pm.

A moving proton with a speed of 0.3 m/s experiences a force of 1.5*10^-20N, when it enters at a right angle to the direction of the magnetic field. What is the magnitude of the magnetic field?
Choose one answer.
a. 0.3 Tesla
b. 0.5 Tesla
c. 0.9 Tesla
d. 1.3 Tesla

physics - drwls, Sunday, June 5, 2011 at 12:43am
Since B and the velocity are peperdicualar,

Force = q V B

That is a formula you should have learned before posting this question

Use e for the proton charge and solve for B
physics - J~, Wednesday, May 1, 2013 at 11:01pm
d. 1.3 Tesla

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