Multiple Choice
A cylindrical capacitor is made of two thin-walled concentric cylinders.The inner cylinder has radius r1 = 4.0 mm,and the outer one a radius r2 = 8.0 mm.The common length of the cylinders is L = 150 m. What is the potential energy stored in this capacitor when a potential difference 4.0 V is applied between the inner and outer cylinder? (k = 1/4πε0 = 8.99 × 109 N • m2/C2)
A) 9.6 × 10-8 J
B) 1.3 × 10-8 J
C) 6.3 × 10-8 J
D) 0.34 × 10-8 J
E) 4.6 × 10-8 J
Correct Answer:
Verified
Correct Answer:
Verified
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