This is a research paper, the introduction needs to be clear with a real specific thesis focus on one aspect related to Nikola Tesla (discoveries)

The body should give some pertinent related details close to your thesis with three credible sources ( book, journal article and university press book)
You need to be specific, not too broad and be focus on your thesis. Give some interesting details

the paragraph need to follow that pattern
1.Point/ claim
2.Research detail. If you paraphrase, use your own words.
3.Analysis