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anonymous

  • one year ago

A 5.0 m portion of wire carries a current of 8.0 A from east to west. It experiences a magnetic field of 6.0 × 10^-4 T running from north to south. What is the magnitude and direction of the magnetic force on the wire? A. 1.2 * 10^-2 N downward B. 1.2 * 10^-2 N upward C. 2.4 * 10^-2 N downward D. 2.4 * 10^-2 N upward **is the solution choice A? @michele_laino

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  1. Michele_Laino
    • one year ago
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    here is the situation described by your problem: |dw:1434870022530:dw|

  2. anonymous
    • one year ago
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    ok!

  3. Michele_Laino
    • one year ago
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    oops, I have made a n error: |dw:1434870146959:dw|

  4. anonymous
    • one year ago
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    ok:)

  5. Michele_Laino
    • one year ago
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    now the magnitude of the magnetic force F is: \[\Large F = ILB = 8 \times 5 \times 6 \times {10^{ - 4}} = ...Newtons\]

  6. anonymous
    • one year ago
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    ok! so we get 0.024!

  7. anonymous
    • one year ago
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    so either choice A or choice B! but it is moving downward right? so choice A is our solution?

  8. Michele_Laino
    • one year ago
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    it is option D, since the vector F is pointing out from the drawing plane toward the observer

  9. anonymous
    • one year ago
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    ohhhh okay! oops! :P thank you!!

  10. Michele_Laino
    • one year ago
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    :)

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