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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > Two insulated identically sized charged copper spheres A and B have their centers separated by a distance of 50 cm. Charges on each sphere is q = 6.5× 10^−7 C . A third sphere of the same size but uncharged is brought in contact with the first, then in contact with the second and finally removed from both. What is the new force of repulsion between A and B?

Two insulated identically sized charged copper spheres A and B have their centers separated by a distance of 50 cm. Charges on each sphere is q = 6.5× 10^−7 C . A third sphere of the same size but uncharged is brought in contact with the first, then in contact with the second and finally removed from both. What is the new force of repulsion between A and B?

how strongly do you expect it to be repelled? Suppose we have large number of identical particles very small in size. Any of them at 10 cm separation repel with a force of 3 × 10^−10 N. If one of them is at 10 cm from a group of n others