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OpenStudy (anonymous):
Which of the following could be used to increase a magnetic field of a wire? Keep the wire straight Create a loop out of the wire. Increase the resistance of the wire. Change the direction of the current.
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OpenStudy (kirbykirby):
I'm pretty sure it's create a loops out of the wire. I haven't done physics in quite a while, but I remember increasing the number of turns in a solenoid increased the magnetic field.
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