Question

An air-filled capacitor is formed from two long conducting cylindrical shells that are coaxial and have radii of 26 mm and 99 mm. The electric potential of the inner conductor with respect to the outer conductor is -797 V (k = 1/4πε 0 = 8.99 × 109 N · m2/C2). The average energy density of the capacitor is closest to An air-filled capacitor is formed from two long conducting cylindrical shells that are coaxial and have radii of 26 mm and 99 mm. The electric potential of the inner conductor with respect to the outer conductor is -797 V ( = 1/4πε 0 = 8.99 × 109 N · m2/C2). The average energy density of the capacitor is closest to

2.3×10−3 J/m

2.3×10−4 J/m

5.2×10−5 J/m

6.2×10−4 J/m

4.6×10−4 J/m3.

Answer 1