Answer:
82 pF
Explanation:
diameter = 8.2 cm, distance, d = 2.1 mm = 0.0021 m,
dielectric constant, k = 3.7
radius = 1/2 x diameter = 8.2 / 2 = 4.1 cm = 0.041 m
The formula for the capacitance of parallel plate capacitor is given by
[tex]C = \frac{k \varepsilon _{0}\times A}{d}[/tex]
[tex]C = \frac{3.7 \times 8.854\times 10^{-12} \times \pi \times 0.041 \times 0.041}{0.0021}[/tex]
C = 8.23 x 10 ^-11 F
C = 82 pF
