An air-filled capacitor is formed from two long conducting cylindrical shells that are coaxial and have...
An air-filled capacitor is formed from two long conducting cylindrical shells that are coaxial and have radii of 21mm and 108 mm. The electric potential of the inner conductor with respect to the outer conductor is - 400 V (k = 1/4πε 0 = 8.99 × 109 N · m2/C2) The energy stored in a 1.0-m length of this capacitor is closest to
5.5 μJ.
2.7 μJ.
1.9 μJ.
7.6 μJ.
3.8 μJ.
Homework Answers
Concept - use the equation for cylinder capacitance to find the capacitance first and then use that along with voltage to find the energy as shown below,
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An air-filled capacitor is formed from two long conducting
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