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.
Elecraft, Inc. is an American manufacturer of amateur radio equipment and kits, based in Aptos, California. It was founded in 1998 by Wayne Burdick and Eric Swartz. The company's first product was the K2 transceiver which was first prototyped in October 1997. The company is most notable for the Elecraft K3 high-performance HF transceiver, a 32-bit DSP based radio covering HF plus the 6-meter VHF band and the 160m MF band, introduced in 2008.