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Two spherical conductors B and C having ...

Two spherical conductors B and C having equal radii and cayying 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 B but uncharged is brought in contact with B, then brought in contact with C and finally removed away from both. The new force of repulsion between B and C is

A

`F//4`

B

`3F//4`

C

`F//8`

D

`3F//8`

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The correct Answer is:
D
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