A very long wire carries a current i. What is the direction of the magnetic field at point P, a distance r away from the wire and directly above it as you look down at the wire? i Down Selected Answer: Out of the page Answers: Down Into the page Up
A very long wire carries a current i. What is the direction of the magnetic field at point P, a distance r away from the wire and directly above it as you look down at the wire? i Down Selected Answer: Out of the page Answers: Down Into the page Up
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Can you explain why up is the correct answer using the right-hand rule?
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