The force between two charges Q and q, separated by a distance d is F. What will be the force between them when distance between them is d/2?
Correct answer: A. 4F
- A. 4F
- B. 2F
- C. F
- D. F/2
Explanation
Correct option is A.According to Coulomb's law: F1 = k/d2K =F1 × d2F2 =k /(d/2)2F2 =4FAs this is a numerical thus only one option is correct.
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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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