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pallavi pradeep bhardwaj Grade: 12

Two spherical conductors B and C having equal radii and carrying equal charges on them repel each other with a force F when kept apart at some distance A third spherical conductor having same radius as that of B then brought in contact with C and finally removed away from both The new force of repulsion between B and C is

7 years ago

Answers : (1)

Badiuddin askIITians.ismu Expert
147 Points

Dear pallavi

when 2 identicle metalic surface bought in contact then charge onn them are equalised due to the flow of free elctron

let the initial charge on B and C is q

 when third sphere come in contact with B then new charge on B =q/2

   and charge on the third conductor =q/2

and third conductor come in contact with C so total charge =q/2 + q =3q/2

   charge will equally distribute ,so charge on C = 3q/4

   now force = k (q/2)(3q/4) /d2

                      = 3F/8

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Askiitians Experts

7 years ago
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