Multiple Choice
A cylindrical capacitor is made of two concentric cylinders. The inner cylinder has radius r1 = 4 mm, and the outer one a radius r2 = 8 mm. The common length of the cylinders is L = 150 m. What is the potential energy stored in this capacitor when a potential difference V = 4 V is applied between the inner and outer cylinder?
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
Q54: State three reasons for adding a dielectric
Q58: A parallel-plate capacitor has plates of area
Q59: A parallel-plate capacitor has plates of area
Q61: Two large non-conducting plates of surface area
Q62: A 1 pF capacitor is connected in
Q64: Briefly discuss some of the uses for
Q65: A dielectric material such as paper is
Q68: A capacitor consists of a set of
Q69: A parallel plate capacitor has a potential
Q80: A 4-μF capacitor has a potential drop