Coulomb's law states that the electric force becomes weaker with increasing distance. Suppose that instead, the electric force between two charged particles were independent of distance. In this case, would a neutral insulator still be attracted towards the comb.
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The question has many loopholes.
- Assume the electrostatic force is not a function of distance. Then on what parameters does that force depend? Do you say, F = kq₁q₂. In that case what is the value of k? If you say it is the same that we take now. Then, it comes down to the charge that is present on the comb. If you say it is in microcoulombs like it is in reality. Then it would depend on the weight of the insulator. If the weight of the insulator is less than 9*10^-3 N, then yes, the insulator would be attracted no matter how far you place the comb. Even at infinity!!
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