A Parallel Plate Capacitor of Capacitance C₀ Has Plates of Area

question 21

Multiple Choice

A parallel plate capacitor of capacitance C₀ has plates of area A with separation d between them. When it is connected to a battery of voltage V₀, it has charge of magnitude Q₀ on its plates. It is then disconnected from the battery and the space between the plates is filled with a material of dielectric constant 3. After the dielectric is added, the magnitudes of the capacitance and the potential difference between the plates are

• A) C₀, V₀.
• B) C₀, V₀.
• C) C₀, V₀.
• D) 3C₀, V₀.
• E) 3C₀, 3V₀.

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