An electromagnetic pump is like a special kind of pump that uses electricity to move liquid through a tube. This special pump has two parts: a magnet and a tube. The magnet is placed near the tube, and when electricity flows through the magnet, it creates a magnetic field. This magnetic field then pushes the liquid through the tube. Think of it like when you use a magnet to move a metal toy car - the magnet pulls the car along.
So, the electromagnetic pump uses electricity (like plugging in a lamp) to create a magnet, which then helps move liquid through a tube. This can be useful in things like water treatment plants, where they need to move water from one place to another.