Each Plate of a Parallel-Plate Air-Filled Capacitor Has an Area $m ^ { 2 }$

question 101

Multiple Choice

Each plate of a parallel-plate air-filled capacitor has an area of 0.0040 $m ^ { 2 }$ ,and the separation of the plates is $0.020 \mathrm {~mm}$ An $\vec { E }$ field with a magnitude of $$8.2 \times 10^6 \mathrm {~N} / \mathrm { C }$$ is present between the plates.What is the energy density in the region between the plates? (ε₀ = 8.85 × 10^-12 C²/N ∙ m²)

• A)300 J/ \[m ^ { 3 }\]
• B)200 J/ \(m ^ { 3 }\)
• C)400 J/ \(m ^ { 3 }\)
• D)500 J/ \(m ^ { 3 }\)
• E)610 J/ \(m ^ { 3 }\)

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