Each Plate of an Ideal Air-Filled Parallel-Plate Capacitor Has an Area

question 39

Multiple Choice

Each plate of an ideal air-filled parallel-plate capacitor has an area of $0.0010 \mathrm {~m} ^ { 2 }$ , and the separation of the plates is $0.050 \mathrm {~mm}$ . An electric field of $7.4 \times 10 ^ { 6 } \mathrm {~V} / \mathrm { m }$ is present between the plates. What is the capacitance of this capacitor? $\left( \varepsilon _ { 0 } = 8.85 \times 10 ^ { - 12 } \mathrm { C } ^ { 2 } / \mathrm { N } \cdot \mathrm { m } ^ { 2 } \right)$

• A) \(300 \mathrm { pF }\)
• B) \(120 \mathrm { pF }\)
• C) \(180 \mathrm { pF }\)
• D) \(240 \mathrm { pF }\)
• E) \(360 \mathrm { pF }\)

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