English to Spanish Science Physics

Hola:

Un texto que trata de explicar a niños lo que es la corriente alterna dice esto:

“AC” means “alternating current. ” Electricity in the home is alternating current, which means it continually changes direction **as the generator’s coil spins around past its electrodes**.

Por si ayuda, el texto también dice lo siguiente:

An electricity generator uses mechanical energy to create electrical energy. Many generators use electromagnetic induction, in which a coil of conducting wire, such as copper wire, is spun around inside a magnet. This causes electrons in the wire to move, creating a current.

No veo claro el significado del fragmento que pongo entre asteriscos, en especial el verbo. ¿Alguna ayuda?

¡Gracias!
Rosa