Physics · Electric charges: conservation of charge, Coulomb's law forces between two point charges, forces between multiple charges, superposition principle and continuous charge distribution
When air is replaced by a dielectric medium of force constant , the maximum forc
When air is replaced by a dielectric medium of force constant \( \mathrm{K} \), the maximum force of attraction between two charges, separated by a distance :
- A. decreases K times
- B. increases K times
- C. remains unchanged
- D. becomes \( \frac{1}{K^{2}} \) times
Step-by-step solution
According to Coulomb's law, the force between two charges in a medium with dielectric constant K is F = (1/(4πε0K)) * (q1 q2)/r^2, which is 1/K times the force in air. Thus, the maximum force of attraction decreases by a factor of K.
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