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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 11.0 cm , and the outer sphere has radius 15.5 cm cm . A potential difference of 110 V is applied to the capacitor.

1-What is the energy density at r= 11.1 cm , just outside the inner sphere?

2-What is the energy density at r = 15.4 cm , just inside the outer sphere?

3-For a parallel-plate capacitor the energy density is uniform in the region between the plates, except near the edges of the plates. Is this also true for a spherical capacitor?

yes or No

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