This makes the magnetic force of all the little magnets add up to make a large magnet, called a permanent magnet. Free magnets tend to align with each other. You can try this by placing one magnet on a table and slowly moving another magnet toward it. The magnet that is loose on the table turns to align with the magnet in your hand. If you stroke a piece of iron with a magnet, you gradually align the little magnetic domains, and the result is a larger magnet.
Electric current is the flow of electrons through a conductor.
A conductor is a material that lets the electrons hop from atom to atom when influenced by an outside force. Electrons flowing through a conductor create a magnetic field around the conductor. This is called electromagnetism. A stronger magnet can partially realign the magnetic domains of a weaker magnet. Many different substances can be made into permanent magnets.