A -4.0 nC charge is on the x-axis at x1 = -7 cm and a 5.4 nC charge is on the x-axis at x2 = 16 cm . At what point or points on the y-axis is the electric potential zero? (in cm)
Added by Melissa L.
Step 1
Let the point on the y-axis be at a distance y from the origin. The electric potential due to the -4.0 nC charge at this point is given by: $V_1 = \frac{kq_1}{\sqrt{x_1^2 + y^2}} = \frac{(-9 \times 10^9 Nm^2/C^2)(-4 \times 10^{-9} C)}{\sqrt{(-0.07 m)^2 + Show more…
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