JEE Main 2004 Physics question
Two spherical conductor B and C having equal radii and carrying equal charges in 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 but uncharged 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
Answer: (4)
Solution
Initially B and C carry each: . The identical third sphere touches B: charge shares equally, B , third . It then touches C: total $ +
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