A Parallel Plate Capacitor of Capacitance C0 Has Plates of Area

question 38

Multiple Choice

A parallel plate capacitor of capacitance C0 has plates of area A with separation b between them. When the capacitor is connected to a battery of voltage ÄV, it has a charge of magnitude Q on its plates. It is then disconnected from the battery and the space between the plates is filled with a material of dielectric constant ê = 3. After the dielectric material is added, what is the potential difference between the plates?

• A)ÄV
• B)3ÄV
• C)2ÄV/3
• D)ÄV/3

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