The materials would be best to use for the core in order to make the strongest electromagnet to pick up the most nails is iron nail.
What is an electromagnet?
An electromagnet is a magnet which attracts metals only when electrically activated.
Electromagnets employ the principle of electromagnetism i.e. the use of electric currents to create magnetic force.
Therefore, the materials would be best to use for the core in order to make the strongest electromagnet to pick up the most nails is iron nail because of the metal.
Learn more about electromagnetic at: https://brainly.com/question/3427992
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