A 0.300 meter long cylindrical capacitor consists of a solid conducting core with a radius of 1 millimeter and an outer hollow conducting tube with an inner radius of 2.15 millimeter. The two conductors are separated by air and charged to a potential difference of 6.30 Volt.
A. Obtain the charge per unit length for the capacitor.
B. Compute the total charge of the capacitor.
C. Compute the capacitance.
D. Compute the energy stored in the capacitor when fully charged.