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A thin metallic spherical shell a carries Q on it. A point charge Q_(1) is placed at the centre of the shell and another charge q is placed outside as shown in figure ahead. All the charges arepositve. Discuss the various forces acting on Q_(1). |
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Answer» Solution :Here the net force on `Q_(1)` will be zero because the net electric field inside a condcutro due to charges on it and outside is zero. The force applied .by q on `Q_(1)`will have the VALUE `(Q_(1)q)/(4 pi epsilon_(0)R^(2))` TOWARDS left. Equal and opositve force will be applied by the charge Q on the shell to MAKE net force on `Q_(3)` = 0 . shell will o this by rearranging its charge as shown below. 
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