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

A spherical capacitor is formed from two concentric spherical conducting shells separated by vacuum. The inner sphere has a radius of rarar_a = 12.5 cmcm , and the outer sphere has a radius of rbrbr_b = 14.9 cmcm . A potential difference of 120 VV is applied to the capacitor.

Part A

What is the capacitance of the capacitor?

Use ϵ0 = 8.85×10−12 F/mF/m for the permittivity of free space.

Part B

What is the magnitude E1 of the electric field E at radius r=r= 12.6 cmcm , just outside the inner sphere?

E1=

Part C

E2=

What is the magnitude of E1 at r=r= 14.7 cmcm , just inside the outer sphere?

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