In the given figure, the charge that appears on the sphere is:
Correct answer: C. -qr/d
- A. q
- B. qd/r
- C. -qr/d
- D. zero
Explanation
This is the correct answer. The method of images shows that the induced charge on the sphere is proportional to the charge and inversely proportional to the distance.
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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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