Question

Four students made models of an electromagnet. Which model is most likely to produce the strongest magnetic field?

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1 point
Student wraps copper wire around an iron filament and runs a current through it using a battery
Student wraps yarn around an iron nail and runs a current through it using a battery
Student wraps fishing line around a piece of wood and runs a current through it using a battery
Student wraps copper wire around a plastic spoon and runs a current through it using a battery

Answer 1

[AI-generated answer — Bot GPT 3.5]

The student who wraps copper wire around an iron filament and runs a current through it using a battery is most likely to produce the strongest magnetic field. Iron is a ferromagnetic material, meaning it can easily become magnetized, and wrapping the copper wire around it allows for a strong magnetic field to be produced when a current is passed through the wire.