A -2.0 nC charge and a 2.0 nC charge are located on the
x
-axis at
x=-1.0
cm and
x=+1.0cm
, respectively. Part A At what position or positions on the
x
-axis is the electric field zero?
x=+-\infty
x=-2.0cm
x=0
x=+2.0cm
Part B At what position or positions on the
x
-axis is the electric potential zero?
x=+\infty
x=-2.0cm
x=+2.0cm
x=0,+-\infty
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