An Ideal Air-Filled Parallel Plate Capacitor with Plate a Separation $4.0 \mathrm {~cm}$

question 70

Multiple Choice

An ideal air-filled parallel plate capacitor with plate a separation of $4.0 \mathrm {~cm}$ has a plate area of $0.040$ $\mathrm { m } ^ { 2 }$ . What is the capacitance of this capacitor with air between these plates? $\left( \varepsilon _ { 0 } = 8.85 \times 10 ^ { - 12 } \right.$ $\mathrm { C } ^ { 2 } / \mathrm { N } \cdot \mathrm { m } ^ { 2 }$ )

• A) \(89 \mathrm { pF }\)
• B) \(0.89 \mathrm { pF }\)
• C) \(8.9 \mathrm { pF }\)
• D) \(8.9 \mu \mathrm { F }\)
• E) \(8.9 \mathrm { nF }\)

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