An Ideal Air-Filled Parallel-Plate Capacitor Consists of Two Circular Plates,each $0.30 \mathrm {~mm}$

question 108

Multiple Choice

An ideal air-filled parallel-plate capacitor consists of two circular plates,each of radius $0.30 \mathrm {~mm}$ How far apart should the plates be for the capacitance to be 300.0-pF? (ε₀ = 8.85 × 10^-12 C²/N ∙ m²)

• A)0.0083 μm
• B)0.0042 μm
• C)0.00094 μm
• D)0.00047 μm

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