I could also investigate the material of the coil, which is another factor affecting the strength of an electromagnet. I could investigate this, by placing different materials, like iron, copper, and steel inside the core of the electromagnet, I would keep current and the number of turns constant.
For other video games with this title, see E.T. the Extra-Terrestrial in video games. E.T. the Extra-Terrestrial (also referred to simply as E.T.) is a 1982 adventure video game developed and published by Atari, Inc. for the Atari 2600 video game console. It is based on the film of the same name, and was designed by Howard Scott Warshaw.
Not to be confused with E.T. the Extra-Terrestrial (soundtrack). E.T. the Extra-Terrestrial is an audiobook and soundtrack album for the 1982 blockbuster film of the same name directed by Steven Spielberg. Narrated by American recording artist Michael Jackson, the album was produced by composer Quincy Jones and distributed by MCA Records. The production of the audiobook brought Jackson together with several former collaborators, such as Rod Temperton, Freddy DeMann, and Bruce Swedien.