26. Capacitors & Dielectrics
Intro To Dielectrics
Multiple Choice
Multiple ChoiceA capacitor in a vacuum is charged to 64V between its plates, then disconnected. Initially, each plate has 32μC. An insulating slab of dielectric glass with k = 3 is placed between the plates. a) What is the capacitor's new capacitance? b) What is the new voltage across the capacitor?
A
a) 2.0 μF
b) 192 V
B
a) 1.50 μF
b) 21.3 V
C
a) 1.50 μF
b) 64 V
D
a) 2.0 μF
b) 21.3V
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