According to coulomb's law, the electrostatic forces of attraction between electron and nucleus are _ to its square of the radius.
Correct answer: B. Inversely proportional
- A. Directly proportional
- B. Inversely proportional
- C. Equal
- D. None of these options are correct
Explanation
OPTION A: This statement is incorrect. The electrostatic force is not directly proportional to the square of the radius.OPTION B: Coulomb's law states that the force of attraction or repulsion acting along a straight line between two electric charges is directly proportional to the product of charges and inversely to the square of the distance between them.OPTION C: The electrostatic force between two point charges is not equal to the square of the distance between them, but is inversely proportional to it.
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About Electrostatics
Electrostatics describes forces between charges through Coulomb's law, electric fields and field intensity, then uses electric potential to measure energy per unit charge. Capacitors store charge and electrical energy, with capacitance depending on geometry and dielectric material, not simply on the amount of charge present.
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