Question: 7. A 1.9 cm 2 area parallel plate capacitor is filled with three dielectrics of constants 1=3, 2=1.4 and 3=7. The dielectrics are placed as

7. A 1.9 cm2 area parallel plate capacitor is filled with three dielectrics of

constants 1=3, 2=1.4 and 3=7. The dielectrics are placed as shown in the figure, each occupying half of the total area, the volume of the first being twice that of the other two. If the distance between the plates is 1 mm.

1

2

3

  1. What is the capacity before including dielectrics?

  1. What is the capacity after including dielectrics?

  1. If we connect the capacitor to a 12V battery, what is the stored energy?

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