Strength of magnetic field F = ILBsin(theta)

[zeion]

Homework Statement

How many times stronger is the force acting on the conductor at 90 degrees than it is at 30 degrees?

Homework Equations

F = ILBsin(theta)

The Attempt at a Solution

I would think the answer is two times as strong because sin90 = 1 and sin30 = 0.5.
But the question is worth 5 marks so I think there must be something more to it..

 

[glueball8]

it seems that's it.