A 100.0 pF capacitor consists of two circular plates of radius 0.40 mm. How far apart are the plates? (The value of εo is 8.85 × 10-12 C2/N·m2.)

circular-plates

#1

A 100.0 pF capacitor consists of two circular plates of radius 0.40 mm. How far apart are the plates? (The value of εo is 8.85 × 10-12 C2/N·m2.)
A) 0.044 μm
B) 0.022 μm
C) 0.0050 μm
D) 0.0025 μm

Answer:

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