A Parallel-Plate Capacitor Has a Capacitance of 10 MF and Is

question 29

Multiple Choice

A parallel-plate capacitor has a capacitance of 10 mF and is charged with a 20-V power supply.The power supply is then removed and a dielectric material of dielectric constant 4.0 is used to fill the space between the plates.What is the voltage now across the capacitor?

• A) 80 V
• B) 20 V
• C) 10 V
• D) 5.0 V
• E) 2.5 V

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