For the electric field shown, which of the following statements describes an increase in voltage?
A. A positive charge moves along an equipotential line.
B. A positive charge crosses an equipotential line toward the source charge.
C. A negative charge crosses an equipotential line toward the source charge.
D. You cannot tell from the information given.
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OpenStudy (anonymous):
OpenStudy (michele_laino):
please,wait a moment since many stuudents are asking for help
OpenStudy (anonymous):
ok!
OpenStudy (michele_laino):
the electric voltage is given by the subsequent formula:
\[V\left( r \right) = K\frac{Q}{r}\]
OpenStudy (anonymous):
ok! what do we plug in?
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OpenStudy (michele_laino):
where r is the subsequent distance:
|dw:1433443640459:dw|
OpenStudy (michele_laino):
in order to increase the potential, we have:
1) decrese the distance r, if the other charge is positive
2) increase the distance r if the other charge is negative
OpenStudy (michele_laino):
decrease*
OpenStudy (anonymous):
ohh okay!! so then our solution is choice B? :/
OpenStudy (michele_laino):
that's right!
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