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Plates of area 0.01 m² are 1 mm apart in air. Capacitance (ε0 = 8.85 × 10⁻¹² F/m)?
A88.5 pF
B8.85 pF
C885 pF
D8.85 nF
Answer & Solution
Correct answer: A. 88.5 pF
C = ε0A/d = 8.85×10⁻¹² × 0.01 / 0.001 = 8.85×10⁻¹¹ F = 88.5 pF.
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