A Capacitor Has a Voltage Of $391 \mathrm {~V}$ Applied Across Its Plates, and Then the Voltage Source Is

question 52

Multiple Choice

A capacitor has a voltage of $391 \mathrm {~V}$ applied across its plates, and then the voltage source is removed. What is the potential difference across its plates if the space between them is then filled with mica, having a dielectric constant of $5.4$ ?

• A) \(2110 \mathrm {~V}\)
• B) \(18,675 \mathrm {~V}\)
• C) \(72 \mathrm {~V}\)
• D) \(641 \mathrm {~V}\)

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