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pallavi pradeep bhardwaj Grade: 12

Two simiilar spheres having q and -q charge are kept at a certain distance F force acts between the two If in the middle of two spheres another similar sphere having q charge is kept then expirience a force in magnitude and direction as

8 years ago

Answers : (1)

Badiuddin askIITians.ismu Expert
147 Points

Dear pallavi

 let the initial distance is d

 F= k qq/d2

 if a third sphere is placed between then  sphere having charge q repel it and spehere having charge -q attract it.

 force by q charged sphere =F1=k qq/(d/2)2

                                                             =4k qq/d2 =4F ( from +q to -q)


force by -q charged sphere =F2 =k qq/(d/2)2

                                                            =4k qq/d2 =4F (from +q to -q)

so net force  = 4F + 4F =8F

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Askiitians Experts

8 years ago
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