Question

Please help me understand "Electromagnetism"​

Answer 1

Answer:

Electromagnetism is a two-way link between electricity and magnetism. An electric current creates a magnetic field, and a magnetic field, when it changes, creates a voltage. The discovery of this link led to the invention of the TRANSFORMER, electric motor, and generator. It also, after more than 50 years of further work, explained what light is and led to the invention of radio.