A spherical capacitor contains a charge of 3.50 nC when connected to a potential difference of250.0 V. Its plates are separated by vacuum and the inner radius of the outer

shell is 4.70 cm. For related problem-solving tips and strategies, you may want to view a Video Tutor Solution of A spherical capacitor. Calculate the capacitance. Calculate the radius of the inner sphere. Calculate the electric field just outside the surface of the inner sphere.