Determine the distance between the plates of the capacitor, the area of which is 1.4 · 10-3 m2

Determine the distance between the plates of the capacitor, the area of which is 1.4 · 10-3 m2, the capacitance of the capacitor is 1400 pF, and the dielectric is mica (ε = 6).

Given:
C = 1400 pF = 1.4 * 10 ^ (- 9) F;
S = 1.4 * 10 ^ (- 3) m ^ 2;
ε0 = 8.85 * 10 ^ (- 12) F / m – electrical constant;
ε = 6;
Find: d -?
The capacity of a flat capacitor is determined from the formula:
C = ε * ε0 * S / d;
From here we find:
d = ε * ε0 * S / C = [6 * 8.85 * 10 ^ (- 12) F / m * 1.4 * 10 ^ (- 3) m ^ 2] /1.4 * 10 ^ (- 9) F;
d = 53.1 * 10 ^ (- 6) m = 53.1 microns.