Need to find the current in a wire

[seagoing]

A wire 480 m long is in a 0.45 T magnetic
field. A 3.56 N force acts on the wire.
What current is in the wire? Answer in
units of mA.


I don't even really know where to start with this one. A friend of mine and I have been going through a lot of equations but so far everytime there is an extra variable that we cannot find.

 

[seagoing]

Wow, I was making this way too difficult then it needed to be.

I ended up using this equation:

F/L*B=I

 

[bjd40@hotmail.com]

that is the right eqn. while putting the values take care of proper units.