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A capacitor is formed from two concentric spherical conducting shells separated by vacuum. The inner sphere...

A capacitor is formed from two concentric spherical conducting shells separated by vacuum. The inner sphere has radius 12.0 cm , and the outer sphere has radius 16.0 cm . A potential difference of 150 V is applied to the capacitor.

a) What is the energy density at r= 12.1 cm , just outside the inner sphere?

b)What is the energy density at r = 15.9 cm , just inside the outer sphere?

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