Electromagnet

Real World Example

Imagine trying to keep a stack of papers neatly organized on a windy day. You might temporarily use a paperweight to keep them in place, much like how an electromagnet uses electricity to make its iron core magnetic only when needed. Just as the paperweight holds the papers together temporarily, the electric current in the wire coil creates a magnetic field that turns the iron core into a magnet only when the current flows, providing a temporary solution to attracting metal objects.