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anonymous

  • one year ago

For the electric field shown with a positive source charge, which of the following statements describes a decrease in voltage? A. a positive charge moves across an equipotential line away from the source charge b. a positivbe charge moves along an equipotential ine C. a positive charge crosses equipotential lines toward the source charge D. you cannot tell from the information given

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  1. anonymous
    • one year ago
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    |dw:1433275739520:dw|

  2. anonymous
    • one year ago
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    sorry it is messy! i cannot use the tools anymore again :( but there is a "+" symbol inside the smallest circle :)

  3. Michele_Laino
    • one year ago
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    electric potential is given by the subsequent formula: \[\Large V\left( r \right) = K\frac{Q}{r}\] where Q is the charge at the center of your drawing

  4. Michele_Laino
    • one year ago
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    and r is the radial distance from the charge Q

  5. anonymous
    • one year ago
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    yes:)

  6. Michele_Laino
    • one year ago
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    so, in order to decrease the voltage V, I have to increase the distance r along a radial line

  7. Michele_Laino
    • one year ago
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    so option A

  8. anonymous
    • one year ago
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    ohh okay!! thank you!!:)

  9. Michele_Laino
    • one year ago
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    :)

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