Two small conducting spheres of equal radius have charges +10µC and -20µC respectively are placed at a distance R from each other to experience force F1 If they are brought in contact and separated to the same distance, they experience force F2. The ratio of F1 to F2
Correct answer: A. 1:8
- A. 1:8
- B. 1:5
- C. 1:2
- D. 5:1
Explanation
This is correct according to calculations
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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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