Question

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 1.85m² using paper (k = 3.7) of thickness 1.5 mm as a dielectric, how much electrical energy would it store at a plate voltage of 1500 V? (e₀ = 8.85x10^-12 C²/N.m²)

A) 0.045 J

B) 9.1 J

C) 910 J

D) 1800 J

E) 3600 J

Answer 1