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                                    Charges Q1 and Q2 are in vacuum initially. Q2 experiences a net force F due to the presence of Q1. They are now placed in a new medium of dielectric constant εrand the relative distance between them is maintained. The new net force experienced by Q2 due to the presence of Q1 is | 
                            
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Answer»  Charges Q1 and Q2 are in vacuum initially. Q2 experiences a net force F due to the presence of Q1. They are now placed in a new medium of dielectric constant εrand the relative distance between them is maintained. The new net force experienced by Q2 due to the presence of Q1 is  | 
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