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 (? = 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? (?0 = 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
a
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