Compute for the capacitance, in picofarads, of the cylindrical capacitor of inner and outer radii 2 cm and 9 cm, respectively,using a dielectric of relative permittivity 3.09. The capacitor is 28 long.

Given that q=CV What happens to the capacitance C if the voltage drop V across the capacitor is doubled? Justify your answer.

A cylindrical capacitor is made of two thin-walled concentric cylinders. The inner cylinder has radius R₂ = 7.5 mm, and the outer one a radius R = 14 mm. The region between the cylinders contains a dielectric with constant =3.6. The common length of the cylinders is L=7.5 m (Assume the cylinders can be treated as ideal infinite cylinders.) Determine the potential energy stored in this capacitor when a potential difference V = 38.8V is applied between the inner and outer cylinders in n.J. ME hp

Consider a solid cylindrical conductor of inner conductor radius 61 cm and outer conductor radius 84 cm with charge Q that is coaxial with a cylindrical shell of negligible thickness. Find the capacitance, in nF, of this cylindrical capacitor if its length is 74 m and the insulator used is mica (εr =  6).

The capacitance per unit length of a cylindrical capacitor is 14.7 pF/m. If the space between the two cylinders is filled with air, then what is the ratio of the radii of the two cylinders, greater radius to lesser radius? R₂/R₁ = 1 sin() cos( tan() π