One basic example is the electromagnet, which is constructed from many coils of wire wrapped around a central iron core.
(One basic example; is; the electromagnet, which is constructed from many coils of wire) (the electromagnet; is constructed; from many coils of wire) (many coils of wire; wrapped; around a central iron core)
One basic example the electromagnet many coils of wire
is is constructed wrapped
the electromagnet, which is constructed from many coils of wire
from many coils of wire
around a central iron core