13. Sphere A is charged positively and sphere B is neutral. The spheres are brought near each other. Which of the following statements is true? F F r +) O There is a repulsive electrostatic force applied only on sphere B O There is an attractive electrostatic force between the spheres O There is a repulsive electrostatic force between the spheres O More information is required O There is no electrostatic force between the spheres since one is neutral +

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