Homework Statement
> Figure 1:
>
> A spool is hung on a spring. A part of the coil hangs in front of a
> homogeneous magnetic field. The coil is incorporated in an electrical
> circuit. See Figure 1.
>
> the coil KLMN has a rectangle shape, has a height of 10.0 cm, a width
> of 8.0 cm, and...