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anonymous

  • one year ago

Generator effect quesion

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  1. anonymous
    • one year ago
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    its the hand rules kinda confused

  2. anonymous
    • one year ago
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    |dw:1437531616981:dw|

  3. anonymous
    • one year ago
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    which will become neagtive ? or b ? and its a electron flow

  4. anonymous
    • one year ago
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    A or B?

  5. anonymous
    • one year ago
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    Hmmm, I don't quite understand the illustration. What's happening?

  6. anonymous
    • one year ago
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    its going from north to south

  7. anonymous
    • one year ago
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    the v is the thumb

  8. anonymous
    • one year ago
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    What's going from north to south? Thumb? I think I'm missing some information.

  9. anonymous
    • one year ago
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    u know that hand rules?

  10. anonymous
    • one year ago
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    I do. The right hand rule is the name given to a few different things. In Electricity and Magnetism (E and M, or EnM, for short), it usually refers to pointing your thumb in the direction of the positive current, and your fingers will curl around in the direction of the magnetic field.

  11. anonymous
    • one year ago
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    Using your right hand, of course.

  12. anonymous
    • one year ago
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    its an electron so i thought it was left hand?

  13. anonymous
    • one year ago
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    Another version of the right hand rule involves pointing fingers in the direction of vectors in a cross product. You can then find the direction of the result by doing this. Example: A x B = C (A cross B) If you point your index finger in the direction of A (keeping the index finger straight), and your middle finger in the direction of B (flip your hand if you need to point in a direction on the back side of your hand), then the result of the cross product will be in the direction your thumb is pointing (if using the right hand).

  14. anonymous
    • one year ago
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    Correct, you can do the same thing with your left hand for an electron (negative current)

  15. anonymous
    • one year ago
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    for me i am getting B as positive am i correct?

  16. anonymous
    • one year ago
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    I can't say. I'm not sure what's happening in the picture.

  17. anonymous
    • one year ago
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    since it goes from + to -

  18. anonymous
    • one year ago
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    |dw:1437534462978:dw|

  19. anonymous
    • one year ago
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    this is what my hands look like

  20. anonymous
    • one year ago
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    left hand

  21. anonymous
    • one year ago
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    What is V?

  22. anonymous
    • one year ago
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    here is how the answr looks like

  23. anonymous
    • one year ago
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    1 Attachment
  24. anonymous
    • one year ago
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    OH! A conductor is moving upwards between the magnets! I see!

  25. anonymous
    • one year ago
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    the answer is showing the electron is moving to the negtive side?

  26. anonymous
    • one year ago
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    how is that possible

  27. anonymous
    • one year ago
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    It's saying that a negative charge would build up on that side, because the electrons would move that direction.

  28. anonymous
    • one year ago
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    the electron is the thumb right

  29. anonymous
    • one year ago
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    the v is the fingers

  30. anonymous
    • one year ago
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    and the palm is the north to south field right?

  31. anonymous
    • one year ago
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    One sec. I just accidentally closed this window and had a LOT typed out, haha

  32. anonymous
    • one year ago
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    For this, we use the cross product hand rules. \[\vec{F} = q\vec{\rm{v}}\times \vec{B}\] q is the charge of the particle. For an electron, this is a negative number. We can account for this by using our left hand. Since v comes first in the equation, we point our index finger in it's direction (upwards). Keep the hand aligned with the index finger, as much as you can. B comes next. We'll point the middle finger in the direction of B (to the right-ish). Then, stick out your thumb. Your thumb should be pointing towards B (back toward you-ish) This doesn't tell you the magnitude of the force, but your thumb is pointing in the direction of the force on the electron. Electrons would move towards point B, causing that side of the rod to become negatively charged.

  33. anonymous
    • one year ago
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    r there more these types of problems online?

  34. anonymous
    • one year ago
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    Specifically like this one? Or just EnM type problems in general?

  35. anonymous
    • one year ago
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    actually i think i understand these now nvm ,

  36. anonymous
    • one year ago
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    Excellent :)

  37. anonymous
    • one year ago
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    i am going to do more probs

  38. anonymous
    • one year ago
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    r u gonna stay here for a while?

  39. anonymous
    • one year ago
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    I actually need to leave for the night.

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is replying to Can someone tell me what button the professor is hitting...

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