Assuming that the plates are in a vacuum, the capacitance of two plates with area A = 1 m² at a distance d = 1 mm is 8.854 nF. To find this result, follow these steps:
Convert the distance in meters: 1 mm ≡ 0.001 m.
Divide the area by the distance: 1 m²/0.001 m = 1,000 m.
Multiply the result of step 2. by the electric permittivity of the vacuum ε0 = 8.854 × 10−12 F/m:
C = 1,000 m · 8.854 × 10-12 = 8.854 × 10-9 F = 8.854 nF.
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