Parallel plate capacitors A, B, and C are identical. If paper will be inserted b

Question

Parallel plate capacitors A, B, and C are identical. If paper will be inserted between the plates of A, teflon for B, and polystyrene for C, how will they rank in terms of energy they can store? Assume the capacitors reach the maximum voltage it can have.

Dielectric    Dielectric Constant K                         Dielectric Strength (V/m)

Paper    3.7                                                     16X106

Teflon                                         2.1                                                     60x106

Polystyrene                                  2. 56                                                   24x106

Explanation / Answer

 C >A> B
Energy decreases with increase in dielectic constant

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