A spherical capacitor contains a charge of 3.50 nC when connected to a potential difference of 210.0 V. Its plates are separated by vacuum and the inner radius of the outer shell is 5.00 cm. For related problem-solving tips and strategies, you may want to view a Video Tutor Solution of A spherical capacitor.?

Incomplete question as we have not told to find what quantity.The complete question is here

A spherical capacitor contains a charge of 3.50 nC when connected to a potential difference of 210.0 V. Its plates are separated by vacuum and the inner radius of the outer shell is 5.00 cm.calculate: (a) the capacitance; (b) the radius of the inner sphere; (c) the electric field just outside the surface of the inner sphere.

(a)

(b)

(c)

Explanation:

Given data

For part (a)

The Capacitance given by:

For part (b)

The Capacitance of coordinates is given as

For part (c)

The electric field according to Gauss Law is given by:

think its the third option