A student is planning an experiment using a nail, wire, and a battery to investigate the factors that affect and do not affect the strength of an electromagnet. Which factor would NOT affect the strength of the electromagnet?

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1 point
the kind of metal used for the nail in the electromagnet
the amount of current flowing through the electromagnet
the number of coils of wire used in the electromagnet
the direction of the current flowing through the electromagnet

1 answer

the direction of the current flowing through the electromagnet