How would I calculate the voltage

[mnishi96]

Homework Statement

A 0.18m long metal rod is places on some metal rollers in a megnetic field directed into the page. When the rod is moved left with a speed of 1.6ms-1, a current of 0.034 A is measured through the 25Ω resistor.
How would I calculate the voltage when I'm not given the magnetic field strength? V=BvL

Homework Equations

F=BI:
F=Bvq
V=Bvl

The Attempt at a Solution

F=BIL
= 9.8=B*0.034*0.18
B=9.7/(0.034*0.18)
=1601T

V=BvL
V=1601*1.6*0.18
=461.19V..

I'm not sure if you can use 9.8 for the force,
please help

 

[tiny-tim]

hi mnishi96! welcome to pf!

How would I calculate the voltage when I'm not given the magnetic field strength?

can't you just use V = IR ?