Answer to Question #44116 in Electromagnetism for Sunigraiz Faryad
Negative charge creates electric field, andthat’s why balloon will cause polarization of charge in sphere. Balloon and sphere will interact, Coulomb's law states that:
The magnitude of the electrostatic force ofinteraction between two point charges is directly proportional to the scalar multiplication of the magnitudes of charges and inversely proportional to the square of the distance between them. The force is along the straight line joining them. If the two charges have the same sign, the electrostatic force between them is repulsive; if they have different sign, the force between them is attractive.
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