Electricity and magnetism are intertwined in electromagnetism. Maxwell’s equations describe their relationship: a changing electric field creates a magnetic field, and a changing magnetic field creates an electric field. This is electromagnetic induction. Power plants generate electricity using generators that convert mechanical energy into electrical energy through electromagnetic induction. Electric motors, speakers, MRI machines, and maglev trains also rely on the interaction between electricity and magnetism. They are essential to natural phenomena and everyday technology.