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A 12.5 nC charge is at x = 0cm and a -1.0 nC charge is at...

A 12.5 nC charge is at x = 0cm and a -1.0 nC charge is at x = 5 cm .

At what point or points on the x-axis is the electric potential zero?

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Answer #1

Distance can only be positive so we have taken modulus in the denominator of electric potential formula.

While solving equation , we take modulus value positive in the first case and solve for x , and in the second case we take modulus value negative and solve for x. So we get 2 points in the x axis where the electric potential is zero.

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