A spherical capacitor is formed from two concentric, spherical, conducting shells separated by vacuum. The inner sphere has radius 15.0 cm and the capacitance is 116 pF. (a) What is the radius of the outer sphere? (b) If the potential difference between the two spheres is 220 V, what is the magnitude of charge on each sphere?

Solution 14E Step 1 of 4: A spherical capacitor has capacitance C=116 pF has charge Q under the applied potential difference V= 220 V with the inner radius a=15 cm and outer radius b. Here we need to calculate Part (a)outer radius, b= and the magnitude of charge on each sphere, Q=. Given data, Voltage, V= 220 V 12 Capacitance, C=116 pF =116× 10 m 2 Inner radius, a = 15 cm= 15 × 10 m 9 2 2 Constant k=9 × 10 N.m /C To find, (a) Outer radius, a= (b) The magnitude of charge on each sphere, Q=