## 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

1. anonymous

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2. anonymous

sorry it is messy! i cannot use the tools anymore again :( but there is a "+" symbol inside the smallest circle :)

3. Michele_Laino

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

and r is the radial distance from the charge Q

5. anonymous

yes:)

6. Michele_Laino

so, in order to decrease the voltage V, I have to increase the distance r along a radial line

7. Michele_Laino

so option A

8. anonymous

ohh okay!! thank you!!:)

9. Michele_Laino

:)