Multiple Choice
Dielectrics: 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
Correct Answer:

Verified
Correct Answer:
Verified
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