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Instruction of Parallel Plate Capacitor Experiments
is the dielectric constant，ε 0 =8.854×10 −12 F/mis the permittivity of vacuum，ε ris the relative dielectric constant of the material between the plates. For air ε r ≅1，for an ordinary printing paper ε r ≅3.85，for water ε r ≅12.9.
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