- Drag and place the B-field directing to the coil, magnetic force(s) will exert
on the wire(s) lying inside the field.
- The size of the B-field region can be varied
by dragging its sides or corners.
- When the switch "Total - Zero" is turned to "Zero", the scale
reading will become zero. Any reading shown afterwards is the "weight"
added after the switching.
- "N" and "mN" are units of force, standing for newton and millinewton,