Your class is designing electromagnets. Available materials include: various batteries, different sizes of iron nails, and a large roll of copper wire. Your group built an electromagnet and collected the following results. What can you infer from their results based on the information provided in the chart below?
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1 point
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The electromagnet with more batteries picked up fewer paperclips.
The electromagnet with more batteries picked up more paperclips.
Increasing the coils of wire increased the strength of the magnet.
Increasing the coils of wire decreased the strength of the magnet.