1) Turn up the voltage a) Stronger b) Weaker 2) Lower current a) Stronger b) Weaker 3) More current a) Stronger b) Weaker 4) Nickel core a) Stronger b) Weaker 5) Use an iron core a) Stronger b) Weaker 6) Turn voltage down a) Stronger b) Weaker 7) No core a) Stronger b) Weaker 8) Copper core a) Stronger b) Weaker 9) Wooden core a) Stronger b) Weaker 10) Steel core a) Stronger b) Weaker 11) Less coils a) Stronger b) Weaker 12) More coils a) Stronger b) Weaker

Electromagnets!

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