A 15.0 n C charge is at x = 0 c m and a -1.0 n C charge is at 4 c m . At what po

Question

A 15.0nC  charge is at x = 0cm and a -1.0nC  charge is at 4cm .

At what point or points on the x-axis is the electric potential zero?          Express your answer using two significant figures. If there is more than one answer, give each answer separated by a comma. A 15.0nC  charge is at x = 0cm and a -1.0nC  charge is at 4cm .

At what point or points on the x-axis is the electric potential zero?          Express your answer using two significant figures. If there is more than one answer, give each answer separated by a comma.

Explanation / Answer

15/x = 1/(4-x)

x/(4-x) = 15

x = 60 - 15*x

x = 60/16 = 3.75 cm from 15 nc charge

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