The Lorentz force F is also a vectorial quantity, and is perpendicular to the plane defined by v and B. A force F acts on a charge q passing through a magnetic field B with a velocity v the size of the force depends on the strength and direction of the magnetic field. Magnetic flux density, or more simply the magnetic field B, is a vectorial quantity. Open topic with navigation Force in the magnetic field of an air coilĬan also be carried out with Mobile-CASSY 2, Pocket-CASSY and Mobile-CASSY Force in the magnetic field of an air coil