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Induced Dipoles Cause Attraction
- A charged object induces a dipole in nearby neutral objects by rearranging internal charges.
- The induced closer opposite charge yields a net attractive force despite overall neutrality.
Coulomb's Law Mirrors Gravity
- Coulomb's law mirrors Newtonian gravity but uses electric charge instead of mass; force scales with product of charges over distance squared.
- Charge plays an analogous role to mass in determining interaction strength under inverse-square law.
Electric Fields Map Force Per Point
- The electric field is a vector field assigning a force vector to every point in space around source charges.
- Each vector shows the force a tiny positive test charge would experience at that location.