Question Detail
Question
Calculate the capacitance of two plates of area 4 cm² separated by 1 mm.
Correct Answer
Option D is the correct answer.
Detailed Explanation
A = 4×10⁻⁴ m², d = 1×10⁻³ m, ε₀ = 8.85×10⁻¹². C = ε₀A/d = (8.85e-12 × 4e-4)/(1e-3) = 3.54×10⁻¹² F = 3.54 pF.
Hint
C = ε₀A/d.