Very Large Capacitors Have Been Considered as a Means for Storing

question 40

Multiple Choice

Very large capacitors have been considered as a means for storing electrical energy.If we constructed a very large parallel-plate capacitor of plate area 1.85 m² using paper (κ = 3.7) of thickness 1.5 mm as a dielectric,how much electrical energy would it store at a plate voltage of 1 500 V? (ε₀ = 8.85 × 10−¹² C²/N⋅m²)

• A)0.045 J
• B)9.1 J
• C)910 J
• D)1 800 J
• E)3 600 J

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