Consider a solid metal sphere of radius 20 cm with a total charge of +2 0 nC. What is the potential difference between a point inside the sphere at a radius of 5.0 cm and a point inside the sphere at a radius of 10 cm? A Vis perpendicular. O AVis zero. O AVis positive. AVis negative.Question 1 9 V C1 Given the values of the capacitors below, what is the potential difference across capacitor C3? G = 11.4 PF Cy = 7.90 UF C3 = 11.1 PF Question 2 For fun, you decide to build a circuit, but you have an unknown capacitor laying around. To measure it, you place it in series with a 3.20 pF capacitor you have and connect them to a 6.00 V battery. Using your trusty voltmeter, you measure 4.00 V across the unknown capacitor. What is its capacitance