Electric and Magnetic field relationship

Tareth

1. The problem statement, all variables and given/known data
Show that B = (k)v(cross)E


3. The attempt at a solution
I have no idea where to start. I have the F = qE and F = q(v(cross)B)

Tareth

Just a starting point would be much help.

learningphysics

did you post the question exactly?

Is the question asking to prove that in general:

[tex]B = k\vec{v}\times\vec{E}[/tex]

I don't recognize this relationship... is this for a specific situation?

Tareth

That is the first part of the problem.

Show that [tex]\vec{B} = k\vec{v}\times\vec{E}[/tex]

Find the fundamental units of k, which I believe I have correct as [tex]m^2/s^2[/tex]

Find [tex]\vec{B}[/tex](dot)[tex]\vec{E}[/tex]

Find [tex]\vec{E}\times\vec{B}[/tex]

I believe with the 1st part I can figure the rest out. I just don't know where to start to prove the first part.

learningphysics

In general? Or for a specific situation?

Tareth

In general.