the branch of physics concerned with electromagnetic phenomena
magnetism produced by an electric current; "electromagnetism was discovered when it was observed that a copper wire carrying an electric current can magnetize pieces of iron or steel near it"
the lagging of an effect behind its cause; especially the phenomenon in which the magnetic induction of a ferromagnetic material lags behind the changing magnetic field
not correct; not in conformity with fact or truth; "an incorrect calculation"; "the report in the paper is wrong"; "your information is wrong"; "the clock showed the wrong time"; "found themselves on the wrong road"; "based on the wrong assumptions"