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.
In the early 1950s, the firm's executives set a goal to make Parker, as The New York Times put it, the General Electric of fluid power, a goal it generally achieved in the coming decades. In 1957, the company purchased Hannifin, a producer of valve and cylinder products, and changed its name to Parker Hannifin. Many more acquisitions followed, with the company reaching 40 acquisitions by the year 1979.