An air-filled capacitor is formed from two long conducting cylindrical shells that are coaxial and have radii of 16 mm and 78 mm. The electric potential to the outer conductor is -321 V (k = 1/4TTE = 8.99 x 10⁹ Nm/C²). What is the  average energy density of the capacitor?

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Given the inner radius r1 16mm 0016m and the outer radius r2 78mm 0078m The capacitance of a coaxial ... View the full answer