electromagnetism vs electromagnetics

electromagnetism and electromagnetics both are nouns.

Word	Noun	Adjective	Verb	Adverb
electromagnetism	Yes	No	No	No
electromagnetics	Yes	No	No	No

As nouns, electromagnetism and electromagnetics are synonyms defined as:

electromagnetism and electromagnetics: the branch of physics concerned with electromagnetic phenomena

electromagnetism (noun)	electromagnetics (noun)
the branch of physics concerned with electromagnetic phenomena	the branch of physics concerned with electromagnetic phenomena
magnetism produced by an electric current