Question

Calculate the electric field just outside the surface of the inner sphere.

A spherical capacitor contains a charge of 3.10 nC when connected to a potential difference of 250 V. If its plates are separated by vacuum and the inner radius of theouter shell is 4.00 cm

a)Calculate the capacitance: found to be 1.24*10^-11 F
b)Find the radius of the inner spere: found to be .0294m
c)Calculate the electric field just outside the surface of the inner sphere. T

Part C is the only one I can't figure out. Help would be much appreciated

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