A positive charge + 2 μC and a negative charge 5 μC lie on a line. In

A positive charge + 2 μC and a negative charge ˆ’ 5 μC lie on a line. In which region or regions (A, B, C) is there a point on the line a finite distance away where the potential is zero? Explain your reasoning. Are there any points where both the electric field and the potential are zero?

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