The discussion focuses on calculating the electric field at two specific points on the x-axis where the electric potential is zero, given a -11.8nC point charge and a +23.9nC point charge positioned 13.8cm apart. The relevant equation used is E = kQ/r², where k is Coulomb's constant. Participants shared their approaches, including analyzing three cases: between the charges, to the right of the positive charge, and to the left of the negative charge. The consensus is that careful placement of reference points is crucial for accurate calculations.
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Okay, so let's see your attempts. What did you find and how?nc9261 said:Homework Statement
What is the magnitude of the electric field at the two points on the x-axis where the electric potential is zero?
Homework Equations
E= kQ/r^2
The Attempt at a Solution
I tried setting three cases, between the charges, to the right of the positive charge, and to the left of the negative charge. Assuming the negative charge is placed on x-axis at x=0.