The correct equation used to calculate the magnetic force (\(F\)) on a charge (\(q\)) moving with velocity (\(v\)) in a magnetic field (\(B\)) is:
\[ F = |q| v B \sin(\theta) \]
where \(\theta\) is the angle between the velocity vector of the charge and the magnetic field vector.
Thus, the most appropriate choice based on the provided options is:
F = |q|vBsin (assuming \(\theta\) is implicitly understood).