Question: Who established the close connection between electricity and magnetism?
Disambiguated questions and answers: question: Who was the first person to suggest a close connection between electricity and magnetism?
Who discovered the close connection between electricity and magnetism through experiments on electromagnetic induction?
Who established equations that predicted the connections between electricity and magnetism?
answer: Henry Elles
Michael Faraday
Joseph Henry
Maxwell
James Clerk Maxwell
Natural Questions answer: Hans Christian Ørsted (from the Wikipedia article "Hans Christian Ørsted")