A positive charge q1 is located to the left of a negative charge -q2. On a line passing through the two charges, there are two places where the total potential is zero. The first place is between the charges and is 4.00 cm to the left of the negative charge. The second place is 7.00 cm to the right of the negative charge.
a. What is the distance between the chares, d?
b. Find q1/q2, the ratio of the magnitude of the charges.
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Using simple equations in electricity and magnetism, I have shown how to obtain the distance between two charges for a given orientation. I have shown how to find the ratio of the magnitudes of the charges as well.