A thin conducting plate is inserted halfway between the plates of a parallel plates capacitor of capacitance C. What is the value of capacitance if both the plates of the capacitor are shortened?
Correct answer: D. 4C
- A. C
- B. 2C
- C. 3C
- D. 4C
Explanation
The insertion of a thin conducting plate halfway between the plates effectively creates two capacitors in series, doubling the capacitance twice.
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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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