Magnetism and Electricity Question
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Isolines of potential are drawn for the gravitational field of Sun-Mercury system. The pattern of the isolines is identical to the pattern of equipotential lines for a system of two electrically charged objects with which of the following properties?
- The charges have the same sign and the same magnitude.
- The charges have the same sign and different magnitudes.
- The charges have opposite charges and the same magnitude.
- The charges have the opposite signs and different magnitudes.